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Aberlink CMM Camera

1. 64 Clicking OK will accept these measurements and a representation of the line will be drawn in the graphics area of the Main Screen Hence by repeating the measurement on the other side of the thread will allow the effective diameter of the thread to be measured rare fe hd be P ee dei gB C 4 B GOE SO LAN lt w Half ie mad TUE ae c AS X t212 676mm Y 100 821mm rd dan n aa Pe ak da Pak N L LT TT L Soa Wa ola mi ia en 65 8 11 THE SCREEN RULER FUNCTION Pl The Screen Ruler function is a quick tool for measuring the distance between two clicks made on the Camera Image Measurements can only be made between two points within the field of view of the camera For example if the user wanted to do a quick measurement across the diagonals of the square shown in the image below they must simply click on the image accordingly ike TIER i WA T 7 to here click 2 Distance required 4 from here click 1 k R S LS 2 3 NEEJ R reke LJ ka pe This will bring up the measurement results as follows 66 The measurements reported are the X distance the Y distance and the distance in 2 dimensions XY These reults cannot be printed out in the form of an inspection report they are a duick check only 674 9 0 EDGE DETECTION CONTROLS T The Edge Detection Controls allow the user to modify the default values used for automatically detecting
2. For more information about the Measurement windows and what functionality is available within the windows see chapter 20 The Measurement Windows 8 5 2 Measuring Points using Centre Line Detection The centre point between two edges can be measured automatically using this function in exactly the same way as described in section 8 1 2 above 8 5 3 Measuring Points using Mouse Points n When this button is pressed automatic edge detection is no longer used The user must click on the image at exactly the position that they wish to take a point in exactly the same way as described when measuring a circle in section 8 2 3 above 8 5 4 Measuring Points using the Smart Edge function The Smart Edge function can only be used when using the Circle Line Arc or Point Measure functions When this button is pressed Points can be measured by clicking directly on the image similar to Mouse Points described above However when using this function the operator does not have to select the points exactly Simply click approximately in the area where you would like a point to be taken The software will then scan the adjacent area to find an edge and then take a point on that edge This function is exactly as has been described when measuring circles in section 8 2 4 above AL 86 PEAK POINTS AI This function allows the user to define a box on the image and the soitware will automatically determine the nearest or furthest point
3. 5 1 Using the cross hairs as a protractor to measure angles 18 8 0 THE MEASUREMENT FUNCTIONS ee ee ee eek seke Rae Rek se Rek ee Re EE 20 EDGE DETEGTIOMN sib be ee Ee EO Ge ee Ek EE GE ee ee 20 gt 8 1 CIRCLES LINES OR ARCS AUTO SELECT dd esse ees see seke ee 21 8 1 1 Measuring using Edge Detection di 21 8 1 1 1 Measuring Lines auto selected sse ee Ee Ee ER ER ek ee ee 21 8 1 1 2 Measuring Arcs auto selected ee ee Ee Ee ER ek ek ee ee 23 8 1 1 3 Measuring Circles auto selected se Ee ER ER ee ee Ge 26 8 1 2 MEASURING USING CENTRE LINE DETECTION i EE EE 29 8 2 CIRCLES O EE EE E EA EN EE E EE A EO N 31 8 2 1 MEASURING CIRCLES USING EDGE DETECTION L P PE EREE 31 8 2 2 MEASURING CIRCLES USING CENTRE LINE DETECTION i RE ER 31 8 2 3 MEASURING CIRCLES USING MOUSE POINTS lie nere 31 8 2 4 MEASURING CIRCLES USING THE SMART EDGE FUNCTION Ba 34 8 3 1 MEASURING LINES USING EDGE DETECTION de 35 8 3 2 MEASURING LINES USING CENTRE LINE DETECTION L 35 8 3 3 MEASURING LINES USING MOUSE POINTS lie EN 35 8 3 4 MEASURING LINES USING THE SMART EDGE FUNCTION Ba 35 8 4 1 MEASURING ARCS USING EDGE DETECTION de 37 8 4 2 MEASURING ARCS USING CENTRE LINE DETECTION U 37 8 4 3 MEASURING ARCS USING MOUSE POINTS bn aere 37 8 4 4 MEASURING ARCS USING THE SMART EDGE FUNCTION Ba 37 8 5 7 MEASURING POINTS USING EDGE DETECTION L 39 8 5 2 MEASURING POINTS USING CENTRE LINE DETECTION L 41 8 5 3 MEASURING POINTS USING MOUSE PO
4. this will open the edit window at this point you need to enter a Z offset the Z offset is the distance from the focal point of the camera to the bottom of the quill the plate where the camera attaches to the quill a typical Z offset could be some thing like 266 mm d Stylus Details X Offset T offset Z offset Dia 0 000 0 000 266 a 000 USB Camera To attain the Z offset for the camera focus the image on the granite then measure from the table focal point to the base of the duill top of camera with a rule A typical Z offset would be some thing like 266 mm If you manually change the focal position to change the field of view by using the setting ring on the camera it would be necessary re measure the Z offset It is necessary to do this because the focal point has changed To attain the focal point of the camera move the camera up and down in the Z axis until you have a sharp image in the camera window 5 Click OK and answer No to the next question you should now have a camera off set in Probe Status window 1 2 Changing from Camera to Probe head To replace the camera with the probe head close the camera window using the camera button in the top row of icons and open the Probe Status Window select the probe off set you wish to use Aberlink 3D Software 7 x Please replace camera with PROBEHEAD A message box will appear asking you to replace the camera with
5. x ine Z Feed TIX CEY GZ C3 x TE R 227 445 106 080 4417 500 0 D 227445 106030 4417 sooo 226 642 106883 447 228441 N R 22714145 106 030 4417 SODA IC Right C Lef Plunge Camera Rise Auto Move Here Edit Cell The camera information lnsert Celle is stored here Left click Add Cells here then right click to Delete Cells bring up menu and Set Current Position Move vie choose show camera Approach settings Final Pause If Error End IF Show Camera Settings Record Camera Settings Copy Paste To change settings right click on the feature to bring up the feature measure window Then using the camera image window focus on the part and change light and or edge detection settings to how you want it Next right click on the camera line again and this time click on Record Camera Settings 83 16 0 Calculating the Camera off set If you use both the camera and the probehead to measure a component you need to off set calibrate the camera to match the probehead To do this You measure the same circles twice once with the camera and once with the probehead You should now have two circles in the graphic window slightly off set to each other Pa Camera oe df aoa htm Length E Measure other circle with the Panie probehead width To automatically generate the X Y Z off sets to align the camera with the probehead click on the camera icon below t
6. 2 Beet Nd 7 GLE Tepe REELE Em 2 de ES Ee ER Fiane Fa ar SE KI R Y ETER Paret Dm cI haw Satang 0 l pia 178 Arne 30 E pwa T ame Fitch er ii TERA 261 TAE i 59 Gl 2 m The 141 ad JEW TREE Yd EE TEd Sri d BR Dp Td EST 1h KR AE Yd KS T Wait Ta 26 GED sd Again click OK to accept the measurement Note that if the discontinuity was within the original area scanned then the software would take into account the fit of the measurement points within that area and apply it to the whole scan Hence if you noticed the discontinuity before you started then clicking near to it would allow the whole circle to measured with just one scan Repeat the process for the second arc and therefore using the One Edge Feature the image shown above can be measured with just four mouse clicks py Canna ce ere MM MRIN IE EE aes ok FR of fo S oe i 1 XS kk d a S E ens Aa l na 0 0 x 229 462mm Y 129 467mm TENTAS mmh ea TT san ri e TE me ee ver 8 8 1 1 If the One Edge Feature does not recognise the correct shape Should the software not recognise the correct shape when using the One Edge feature then try changing the size of the initial area scanned by adjusting the Select Size slider within the Detection Tools window For Example if the initial scanned area is small then it will be possible to confuse a large arc with a straight line The general principle is to
7. Edge Percent 3 Edge Percent 100 Edge Percent 50 9 4 Select Size The Select Size will define the area selected either when using the Smart Edge measurement type or the One Edge measurement function The bigger the number selected the bigger the search area will be Select Size 20 Select Size 130 When using the Smart Edge measurement type this defines how close the user has to click to an edge on the image in order for the software to automatically take a point The Select Size is quite an important tool when using the One Edge measurement function Using this function the software analyses the edge being measured within the selected area and therefore it is possible if the area is too small to mistake a large arc for a straight line Increasing the size of the Selection Area will help the software determine which type of feature is being measured 9 5 Thread Flank This setting is relevant when using the Thread Measure tool The Thread Flank percentage defines the straight part of the thread that is used to determine the flank angle E o V 4 Fi N a 1 k E s a 7 N X a af i p we X a as GET T a sd AVE Pa a BA a a i Pr GP a a a e er 9 6 Min Contrast The Min Contrast setting is only relevant when using the Play Function to measure repeat components in semi automatic format see chapter 30 When doing repeat measurements on components the con
8. However when using this function the operator does not have to select the points exactly Simply click approximately in the area where you would like a point to be taken The software will then scan the adjacent area to find an edge and then take a point on that edge This function is exactly as has been described when measuring circles in section 8 2 4 above 84 ARCS a 8 4 1 Measuring Arcs using Edge Detection L Make sure the Edge Detection measurement type button is selected When the Arc Measure function is selected the software will allow the measurement of arcs by clicking on the image in 3 positions and then defining a measurement selection box exactly as when using the auto select function described in section 8 1 1 2 above However when using this function the user can only measure arcs and the software will always require the image to be selected in three positions and a arc shaped selection box created Circles and Lines cannot be measured using this function 8 4 2 Measuring Arcs using Centre Line Detection The centre line between the inside diameter and outside diameter of a section of a circle can be measured automatically using this function in exactly the same way as described in section 8 1 2 above 8 4 3 Measuring Arcs using Mouse Points lie The Mouse Point function can only be used when using the Circle Line Arc or Point Measure functions When this button is pressed automatic edge detection is no
9. edges This can be done prior to taking measurements so the user can see the effect of changing the tool values has on the measurement points before accepting the points Clicking on the detection controls button will open the following window i x Detection Ee Averaging Side F 14 Averaging FB Eg Step Size da E Edge Percent FT 55 Select Size sk te E Thread Flank IT BU Min Constrast ar Cours Edge Point oet Taal Set Measure ak Whilst this window is open you can continue to take measurements in the normal way however the measurement points will remain flashing on the screen i AD ad ee e k j i BA t i if 212 dial TAN BAR m pa m EE n m E 3 2 ME ml B ar h air ape 68 It is then possible to adjust the Detection Tools and see on the screen what effect this has on the measurement points as follows When you are happy with the measurement points shown on the screen simply click on the Measure button to fire whichever measurement type tool is selected 9 1 Averaging Side and Averaging F B When automatically detecting an edge the software investigates the intensity of light at each pixel within the range selected A typical graph may look as follows Ines Position pets By averaging the intensity of adjacent pixels this graph could be smoothed as follows Intensity DAI JY VI LDA F Fositton poe
10. is selected When the Line Measure function is selected the software will allow the measurement of lines by clicking on the image in 2 positions and then defining a measurement selection box exactly as when using the auto select function described in section 8 1 1 1 above However when using this function the user can only measure lines and the software will always require the image to be selected in two positions and a rectangular selection box created Circles and Arcs cannot be measured using this function 8 3 2 Measuring Lines using Centre Line Detection The centre line between the left and right hand edges of a line can be measured automatically using this function in exactly the same way as described in section 8 1 2 above 8 3 3 Measuring Lines using Mouse Points lie The Mouse Point function can only be used when using the Circle Line Arc or Point Measure functions When this button is pressed automatic edge detection is no longer used The user must click on the image at exactly the position that they wish to take a point in exactly the same way as described when measuring a circle in section 8 2 3 above 8 3 4 Measuring Lines using the Smart Edge function a The Smart Edge function can only be used when using the Circle Line Arc or Point Measure functions When this button is pressed the feature selected will be measured by using discreet points selected by the user similar to Mouse Points described above
11. pe DE wit Ps R OS At ale AE RI MEE CMs j N G KTR l K ry Ed lie in fu 8 Ly Guta N I LH LH i mm LU TEFL E Gy EE l bale T Cheat ie B Adjust the camera picture using the largest size possible so that all of image remains in view Ideally about 2 3rds the size of camera image See screenshot above Whilst adjusting please note that the camera works in pixels to measure size Therefore if you are using a camera with a repeatable mechanical zoom as the zoom level is changed the number of pixels will change The camera must be calibrated for each mechanical zoom level With the USB camera it is possible to adjust the field of view magnification from between 130 mm to infinity by using the sliding ring on the camera body by adjusting the camera so its focuses at 400 mm from the work piece the field of view will be a huge 35mm SF Note If you change the field of view magnification using the sliding ring on the camera body you must re set the scale use the set scale button This is important if you do not re set the scale any features you have measure will be wrong 16 1 1 To setting up scales Click on set scales button calibrate box lower right Filter Points over g sigma Max Points D Calibrate Click the zoom position you wish to seticlick on the number under zoom in the grid above Edit Cancel ext Click on zoom le
12. the circle by clicking on the image but as soon as there are more than three points the roundness value of the circle will be shown underneath the graphic view errie Mie sed ge SRE EIE Section Hol E Pea Takai zite Contin e aS j x 29356 Y 82 807 d zo D 2 505 m Ey Points Fit E I Datum i aje E ETIL YALIN 24 ea Od ET aat gt v n ke dd MMed Me dk Nee E Faldie Clear Dakte Slope Construct Set Rer El IE Circle Terapie PEAP Pinhe Heard l Ere EIE Cerra LE Pred aii po LL Atse fo A 018958 Plane Ho Cab E Late or baal 61T prm Pereteston 0 000 Png ach Pon i Etar 1 rl sug z Haal Samt ark E Rack iT 000 Dia paw Sten an 280 lim S Bora i gpr Fitch Ip Dia E mid Rood IHI ee ee es EE EE es m 9 2 Til The slider bar adjacent to the roundness value is used for changing the scale at which the errors are displayed in the graphical representation Clicking Retake will erase the last measured point Clicking Clear will erase all the measured points but leave the Circle Measure window open Clicking Delete will erase all the measured points and close the Circle Measure window This is irreversible Clicking OK will accept the measurements The Circle Measure window will be closed and a representation of the arc will be drawn within the Main screen Clicking Set Ref before selecting OK will cause the centre
13. 25mm Project X to provide focusing of the camera 14 To move the camera upwards click and hold on the bar above the letter Z To move the camera downwards click and hold below the letter Z The further away from the letter Z that you click the faster the camera will travel ie close to the Z will be fine adjustment and far away from the Z will be fast travel 6 2 1 Auto Focus Clicking on the sign at the top of the Z focus bar will cause the camera to hunt in an upwards direction to find an optimum focus Clicking on the sign at the bottom of the Z focus bar will cause the camera to hunt in a downwards direction to find an optimum focus Note that the Esc button can be pressed at any time to stop the auto focus process 6 3 Zooming in and out There are 2 controls for Zooming in and out as follows RE Ee ed eed ree Rd PER TEPE Wa ee Firstly the slider bar above will zoom in and out centred on the middle of the field of view The second tool that can be used for zooming is the Zoom and Pan function LA When this button is pressed a left mouse click on the image will Zoom in centred about the position selected Similarly a right mouse click will Zoom out centred about the position selected You can zoom in or out as many times as you like 15 Please note that the Zoom and Pan button is latching Whilst pressed no measurements can be performed on the image as the mouse b
14. B Axis jo Y fi 08 009 Penetration fo oop Star Ha z 0 000 Startangle 205 Dia 1 069 End angle 331 of Bore C Boss Pitch jo 000 Plun e verl Paints Rack i 0 000 rs L 0 000 R EEr Erz 107 338 agg D sai l D 227 272 107 338 L 500 o 226 276 107 794 LE 220 633 R 227 272 107 335 500 0 Note that arcs are simply sections of a circle and will be represented on a Circle Measure window The number of points taken is shown in the top left hand corner The X Y and Z values relate to the centre point of the circle arc and D is its diameter 25 The graphical picture of the circle shows the measured points represented as small red circles The larger blue circle is the best fit circle through these points The roundness value for the arc is shown underneath the graphic view together with a slider bar for changing the scale at which the errors are displayed in the graphical representation Clicking Retake will erase the last measured point Clicking Clear will erase all the measured points but leave the Circle Measure window open Clicking Delete will erase all the measured points and close the Circle Measure window This is irreversible Clicking OK will accept the measurements The Circle Measure window will be closed and a representation of the arc will be drawn within the Main Screen Note that if an arc covers more than 180 then it will be represented as a full circle on the
15. CAMERA MANUAL Aberlink 3D Vision System User Manual Patented technology by Aberlink siek Measurement Technology has moved on INDEX INTRODUCTION TO THE CAMERA ee ee ee Rek e Rea Ne Rae Rek ee Rek ee Re Re Re Re Re Re Re 1 1 0 CAMERA AND PROBE SWAPPING PROCEDURE xe xx x seke ese Rea 2 1 1 SET UP A CAMERA OFF SET IN PROBE STATUS WINDOW ese ese se ese ese se ee 2 1 2 CHANGING FROM CAMERA TO PROBE HEAD ees ss ee ese see ee ee se ee se ese ee ese ee ee 3 1 3 CHANGING FROM PROBE HEAD TO THE CAMERA ccc ese se ese ee se ese ee se ee se ee 4 2 0 CAMERA SETTINGS oes esse se si oe ee ee ee ee Se oi SG 5 3 0 USING THE CAMERA WITH ABERLINK 3D CMM SOFTWARE 6 4 0 TAKING MEASUREMENTS USING THE CAMERA IMAGE 8 4 1 LIGHTING sese 8 5 0 THE CAMERA IMAGE WINDOW ee ee x eek ee Rea Rek seke Rae Rek ee Re RR eN ee 12 6 0 BASIC FUNCTIONS MOVING FOCUSING ZOOMING 14 6 1 MOVING IN X AND Voer oe ee ie Go EE EE ee EE oe Ee Ee Ie EE 14 6 2 MOVING IN Z FOOUS sie EE RE RE oot RR Ee ee eee EE ee 14 6 2 1 Auto FOCUS EES Ge ee ee ee ee ee 15 6 3 ZOOMING IN AND OUT ese eie ee ee Ge ee Ge EG De 15 e FING EE EE EE OE N 16 1 0 THE MEASUREMENT TYPE BUTTONS seeks eke ks eke Re eke ER 17 7 1 EDGE DETECTION i S 17 7 2 CENTRE LINE DETECTION i EE AENA E EE E E 17 7 3 MOUSE POINTS S S 17 7 4 SMART EDGE Ba EE 18 7 5 CROSS HAIR POINTS p EE EE E A E E N EO EE N 18
16. Camera Controls When measuring difficult parts under tricky light condition it may be necessary to use the advanced camera controls allow you to micro manage the camera to get the best image in the camera window M DevaCamStulf Image Brightness Contrast Exposure Gain Auto Options Brightness Contrast Lock Colours C Individual Colours c LUM Balance Green C Red Gaim Exposure C Adjust Gain Adjust Exposure f Adjust GaintExpasure 6 Exposure Slider 6 Exposure Slider With this slider you can manually adjust the exposure Gain Slider With this slider you can manually adjust the camera gain 8 Lock Colours Individual Colours A colour camera see three images a blue one a red one and green one by combining these together you get a colour image as seen in the camera window There two alternative in how the camera processes this colour information Lock Colours if you click this option all three images are process together giving good colour representation in the camera window Individual Colours if you click this option the images are process individually this can help you measurement the part but can give you false colours in the camera window if you had a lot of red light shining on the part stopping you measuring it you could filter out the red light and only use the blue and green light to measure the part UV Balance If you click this option the camera switches to ultra violet mode making i
17. INTS bn errer 41 8 5 4 MEASURING POINTS USING THE SMART EDGE FUNCTION Ba 41 8 6 7 MEASURING PEAK POINTS USING EDGE DETECTION N 42 8 6 2 MEASURING PEAK POINTS USING CENTRE LINE DETECTION L 43 8 7 1 MEASURING A CURVE USING EDGE DETECTION de 44 8 7 1 1 Measuring a Curve that is larger than the Field of View of the O et tno OE EN EE ee EE etnedendeuateanee ts 47 8 7 2 MEASURING A CURVE USING CENTRE LINE DETECTION L 50 8 8 THE ONE EDGE FEATURE d TE EE se eeeeeceeee 51 8 8 1 Measuring with the One Edge Feature using Edge Detection de 51 8 8 1 1 If the One Edge Feature does not recognise the correct shape 56 8 8 2 Measuring with the One Edge Feature using Centre Line Detection U 56 dd 8 9 THE ALL EDGE POINTS FUNCTION Ba EE E 57 8 9 1 Measuring All Edge Points using Edge Detection 1 57 8 9 1 1 Erasing unwanted Measurement PoINIS iese se see see see see ee ee 61 8 9 2 Measuring All Edge Points using Centre e Detection 62 8 10 THE THREAD MEASURE FUNCTION bg E 63 8 11 THE SCREEN RULER FUNCTION BE PEE 66 TE 9 0 EDGE DETECTION CONTROLS T PT 68 9 1 AVERAGING SIDE AND AVERAGING F B ees ee ese se se ee se ee ee ee 69 92 STER SIZE ese eie ee ee Ge ee ee oe ed ei ei Oe ei ee ee ee Pe Ee 70 9 3 EDGE PERCENT see esse es ese ees eek eke se eek ee ee ke ke ke ke Ge RR eee 71 9 5 THREAD FLANK Ea sss sies sies sie ees eee 73 9 6 MIN GON TAS Tracers ee er n ee ea n oe EE EE GE ie ee 73 9 7 COLOURS EDGE POINTS AND MEASU
18. Main Screen Clicking Set Ref before selecting OK will cause the centre of the arc circle to be set to X 0 and Y 0 It is possible to recall the measured points shown on the grabbed image by using the Show Edge Pixels function see chapter 12 It is also possible to make the points appear on the image and adjust the Edge Detection tools prior to taking the measurement by using the Edge Detection Controls see chapter 9 For more information about the Measurement windows and what functionality is available within the windows see chapter 20 The Measurement Windows 8 1 1 3 Measuring Circles auto selected Circles are measured in exactly the same way as arcs except that if after the second click you now move the mouse in a direction around the circle that covers more than 180 of the circle the software will automatically realise that a circle being measured and the line will now snap to the form of a circle allowing the user to click on the image a third time in order to define the circle to be measured 26 PT REIER L A ERE BEE se ie e Now as you move the mouse away from the circle drawn an circular selection box will be created When you have created the selection box of the desired size enclosing the entire edge but only the edge being measured click again This will automatically fire the Circle Tool and any edge within the selection box will be measured Momentarily the measured points will
19. REMENT TOOLS ccc cc ee ee ee see ee ee ee 73 9 9 FOCUS BOXES iss os sos Gee ee ee ed ed oe ee ae ie 14 9 9 DETECTION GRAPER ee ee ee ie ee ee Ge eee 74 10 0 CAMERA CONTROLS Re MR EE NE NE NE NE AA TA 76 10 1 BASIC CAMERA CONTROLS uscscecccccecucucucucenenenenenenenenenenecucucucususueusususuees 76 Zeller AO se ee eee EE ee ee n ee 76 2 Contrast SIder EE SO Ee Ge EE oe GE ie 76 3 Used ee ee ee ee ee ee ee ee 76 4 Auto Button ee 77 5 Advanced BultON Ge ee ee ee ee ee 77 10 2 ADVANCED CAMERA CONTROLS sees ese ees ese ses ee ek ek ek ER ER ER ER ER ER ER eee 77 OOS e 78 eleien eT 78 FOI E lre T 76 8 Lock Colours Individual ColourS ee ee ee ee 76 9 Auto Gain Exposure settingS iss ses see see ee EE ee Ee ee Ee Ee ee Ee ee se ee ee 78 10 Auto EOCUS EE Ge ee ee ee ee ee ee ee ee ee ee 78 139 1 EDITING FEATURES snes aaa Raa ana EEE enga 83 16 0 CALCULATING THE CAMERA OFF SET sss sss cesses ee sk ee sk ee ke eke eke 84 17 0 CAMERA SETUP sessies aarre ee GE obese eien ee see de ee ees GO EES 86 16 1 SETTING SCALES sn EE Ge EE ee Ee ie be be ie de EE RE RE EE EE 87 161 1 PO GO MING UP e 88 16 2 SETTING UP OFFSETS REPEATABLE MANUAL AUTO ZOOM ONLY 90 16 2 SETTING UP Z ROTATION Z ROT esse es Re EE EE EE RE ER RE ER EE ER EE ER EE ER EE Ee 92 16 6 CHANGE HISTOR Vs soos sesse see ee OE OES EE ED EE OE ER Ee Een ee 94 dIE INTRODUCTION TO THE CAMERA Ab
20. abort the erasing of selected points Aberlink 3D Software f E X X bre vou sure vou want to erase all points in the box Note that right clicking in the graphical view and selecting Expand will make the graphical view fill the whole screen This may make it simpler to select the desired points 6L Right click and select Shrink to return to the normal view of the Measurement window 8 9 2 Measuring All Edge Points using Centre Line Detection The All Edge Points function can be used to detect the centre line between edges by using this function in exactly the same way as described in section 8 9 1 above The Mouse Point and Smart Edge functions are not applicable when measuring All Edge Points 62 8 10 THE THREAD MEASURE FUNCTION bi The Thread Measure function will grab the edge of any threads defined within a box selected on the image and analyse the edges to report the angle of the thread the radii and the pitch between the threads The Thread Measure function is only applicable when using Edge Detection Make sure the Edge Detection measurement type button is selected Position the camera so that a minimum of three threads is visible within the Camera Image window Usually the best definition of the edge of the threads will be achieved by using the backlight to obtain a silhouette Halo Ad ee ee LENA ak OE Now drag a box to enclose the threads to be measured kle LET IN
21. age file 15 0 Editing camera light controls on measured features Once features have been measured it is possible to edit the camera or light controls and re measure Already explained in chapter 9 0 Edge Detection Controls you can control step size edge percentage etc These edits apply for the next measured feature only as it is only special circumstances for which you would apply them Applying different edge percent rules to other features could give incorrect measurements Therefore the defaults are reset after the measurement 82 15 1 Editing Features Line Measure EE es SCO EE Aberlink 30 Software Points Taken Line Position BackLightEnabled False BackLightPower 15 BlackLevel 0 Brightness 5 11355264156596 Contrast L150390625 DetectionColorFlags 0 EdgePercent all Exposure 1 FindEdgeNOTCenter True Flags 192 ForwardAveraging 7 Gain 2 25 MinContrast 30 PreFocus RinglightDirection 15 RingLightEnabled True Retake Construct Set Ret Line Template Probe Head Probe RingLightPower 173 Endi Eng 2 VERB D 0 Pre travel 0 213 Ringlightwidth 4 X 226 640 228 083 Plane No cal Ee fo Over travel 0 213 SideAveraging 7 Y 106 878 106 903 Penetration jo ogg A ee Step Size 41 3 Ek Star fi Paints ThruLightEnabled False Z 0 000 _ fo oo0 Rack fi i fo 000 PET ThruLightPower 31 J 0 000 TE Z oomhumber 1 Dia 10 000
22. be displayed as crosses on the image 27 A Circle Measure window will then appear showing the measured points together with the best fit circle through the points Circle Measure Circle Ce ntre X y na Z oo D 1082 Points Taken E EE Probe Head Frobe Centre EE Pre travel 0 170 a 256 522 ee GAL Si R Over travel 0170 10453 Penetration 0 000 Star M p Plunge Vert Paints 0 000 Start angle 0 Raek EE L Ta Dia 1 082 Eng angle 360 Me N 0000 Bore Boss Pitch 0 000 Dia 0 000 KL 000 x o ay Z Feed C1x CY cr2 Ba eee 256 088 104 277 L c 256 068 104 277 256 068 1404 277 R D R 500 a 500 0 256 185 4104806 4862 257010 10 28 The number of points taken is shown in the top left hand corner The X Y and Z values relate to the centre point of the circle and D is its diameter The graphical picture of the circle shows the measured points represented as small red circles The larger blue circle is the best fit circle through these points The roundness value for the circle is shown underneath the graphic view together with a slider bar for changing the scale at which the errors are displayed in the graphical representation Clicking Retake will erase the last measured point Clicking Clear will erase all the measured points but leave the Circle Measure window open Clicking Delete wil
23. cked the angle of the cross hair is show in the top right hand side of the camera window Dashed lines If you right hand click on the cross hair icon you can choose between dashed or solid cross hairs 19 8 0 THE MEASUREMENT FUNCTIONS The Measurement Functions described below must be used in conjunction with a Measurement Type button as described in the previous chapter Not all of the Measurement Type buttons are relevant to all of the Measurement Functions so the table below has been compiled to show compatibility L ku ite SE Detection Detection Points Edge Line Measure remeasure N da Peak Point Measure w w7 Curve Measure EMUR gt mh e 20 gt 8 1 CIRCLES LINES OR ARCS auto select 2 This function allows the measurement of circles lines or arcs which will be determined automatically by the soitware The user is therefore able to measure all three types of shape in sequence without the requirement to select a different Measurement Function button when changing from one type of measurement to another 8 1 1 Measuring using Edge Detection L Make sure the Edge Detection measurement type button is selected 8 1 1 1 Measuring Lines auto selected To measure a Line on the image click on the edge at one end of where you require the measurements to be taken A line will now become attached to the image at the position selected Now click on the edge at it other extreme which wi
24. d above 47 EE a 1 T ann mja i a DEE CSI N dil Hm Se 3 Click here to define end of scan 1 Create line cutting the edge to define the start position AEAEE Lal IEEE es 7 E n 2 Click here to define direction to scan BU As LS mo MEd dd HR HA ie The Curve Measure tool will then be automatically fired and the points on the edge will temporarily appear as the edge is traced until it reaches the edge of the field of view ETE Le TT maloka TE C1 WIP N AN eiers a IAO ET MR nk as At which point the Camera Image window will be minimised and the Main screen will be shown as follows 48 mp ERa N T Hu H berare seen L Bade TA 999 R 6 MX RANDE HS El siell lt A 1 427mm Y 8 992mm K M bed n ma G 2 G D ULL TEE TT TE Fa KZ 5 Las Er dre PA ee The Field of View for the camera is shown as a pink box with pink crosshairs showing its centre A pink square represents the target to where the camera must be moved in order for it to measure the first feature The XY display also shows how far the camera must be moved in each direction to get to the centre of the target Note that the zoom functions may have to be used in order to see the Field of View and Target boxes as shown above Move the camera using the hand wheels so that the centre of the crosshairs is within the pink target box When the crosshairs are within the target area the rectangle re
25. detects an edge you can bias it toward the strongest pixel or the sharpest pixel in the image You also have the options of picking the first second third or last edge shown in the image Example lf you were measuring a circle with a chamfer the first peak in the graph is where the chamfer meets the top face the second peak in the graph is where the chamfer meets the bore to measure the bore diameter you need to select the second option This point would be the first This point would be the peak in the graph second peak in the graph First this is the first peak in the graph Second this is the second peak in the graph Third this is the third peak in the graph Last this is the last peak in the graph Default this is the default setting for point detection Strongest this option use s the strongest camera signal for point detection Sharpest this option use s the sharpest part of the image for point detection 10 0 CAMERA CONTROLS The brightness and contrast of the Camera Image can be controlled using the tools in the Camera Control window 10 1 Basic Camera Controls CT DevaCamsStuff a f x Imade Contrast Brightness 1 _ A So Used Advanced 1 Brightness Slider The brightness can be adjusted using this slider to achieve the optimum image on the screen The Auto function must be switched off for the slider to work 2 Contrast Slider The brightness can be adju
26. dow The number in the top leit hand corner of the backlight graphic denotes the percentage power being applied to the 8 ultra violet LEDs which is proportional to its intensity brightness To increase the intensity of the backlight use the slider bar at the bottom of the window note this light will be invisible to the naked eye but visible as blue light against the Aberlink back light stage h Moving the slider bar to the right increases the intensity of the backlight and as the intensity of the backlight increases so the colour of the square at the middle of the icon will become lighter At 100 intensity it will appear white To turn the backlight off right click again on the backlight graphic The third part of the Light Control window is designed to control a through the lens light source which is fitted to some camera systems not on the USB camera If you click the OK button the Light Control window will close keeping the light settings previously set If you choose the cross in the top right hand corner of the window to close it both light sources will be turned off Ak 5 0 THE CAMERA IMAGE WINDOW The camera image window can be brought up by clicking on the camera icon The Camera Image window can be maximised to run full size over the top of the Aberlink 2D soitware minimised when wanting to use the functionality of the Aberlink Main Screen or made any size in between and positioned conv
27. e Main Screen represented as a series of points Dimensions can be taken directly between the points by simply clicking on them Circles and lines can also be constructed through these points see chapter 21 Constructing Features ai i ha hepe KE ee Eke oy x Fi d x p d ay ml t E E CN R B LL ae ROT Sel WO LL x h de L R ol h C k d TE A 153 207mm Y 131 38i1mm 10 49 a ans LN G feo pes R AAM b 1 9 ad F BENUT G Bee ee IR Ee RR Ed EER L S Ee MEE ELE Note that DXF Files can also be imported and the measured points best fitted to the DXF file with the error of each point shown graphically see chapter 32 DXF Files Clicking Set Ref before selecting OK has no relevance for a Curve Measure For more information about the Measurement windows and what functionality is available within the windows see chapter 20 The Measurement Windows 60 8 9 1 1 Erasing unwanted Measurement Points You will see that there were a few stray points on the measurements taken above These can be erased as follows 1 Within the graphical view in the Measurement window right click on an individual point and select Erase from the drop down menu 2 Right click in the graphical view in the Measurement window and select Erase all in View Then drag a box enclosing any points that need to be deleted as follows The following window will then appear giving the opportunity to
28. e will now become attached to the image at the position selected Now click on the edge somewhere in the middle of the arc that you are measuring The line will attach itself to this point and if you move the mouse away in a direction perpendicular to the line a rectangular selection box will be created in exactly the same way as though a line were being measured 23 However if you now move the mouse in a direction around the arc the software will automatically realise that an arc is being measured and the line will now snap to the form of an arc allowing the user to click on the image a third time at the end of where they want the arc to be measured Now as you move the mouse away from the arc drawn an arc shaped selection box will be created When you have created the selection box of the desired size enclosing the entire edge but only the edge being measured click again This will automatically fire the Arc Tool and any edge within the selection box will be measured Momentarily the measured points will be displayed as crosses on the image 24 A Circle Measure window will Then appear showing the measured points together with the best fit circle through the points Circle Measure Circle ntre Y 2 8 v Points Taken Prob Trobe Fre travel fo 157 Probe Head AAxs po one Template l Centre L FEP xo 226 741 Plane No EAL es Over travel EER Z
29. eniently by dragging the corner of the window so that the camera image and Aberlink Main Screen can be used at the same time All the measurement tools are available from the Camera Image window and it is therefore worthwhile taking a few minutes to become familiar with the buttons available TE ET TE Gl me sd 9 ti lo EA ee Line Circle or Arc Measurements Point Measurements Circle Measurements only S Peak Point Measurements Line Measurements only Curve Measurement Arc Measurements only One Edge Feature 42 N ON L A se N O N N So Ve OO All Edge Points Thread Measurement screen Ruler Manual Focus not used Auto Focus Point Measurement not used Auto Focus Up Z axis focus adjust Auto Focus Down Edge Detection Controls Camera Controls Zoom and Pan Toggle Video Feed Show Edge Pixels 13 w U U U w N N N N N N N N A GUY N O OO ON nN amp eS N Light Control Camera Resolution high low Save Image Edge Detection Centre Line Detection not used Mouse Point Measurement not used Smart Edge Feature Escape Zoom Set Up Re size Camera Image window 6 0 BASIC FUNCTIONS MOVING FOCUSING ZOOMING 6 1 Moving in X and Y You can use the Hand wheels or the joystick to move the cmm in X and Y direction 6 2 Moving in Z Focus The camera can be moved up and down under motorised control over a distance of 1
30. erlink s CCD camera system offers a non contact measurement facility on a CMM a telecentric lens gives distortion free images on the monitor and automatic edge detection allows the camera to be used either in manual or CNC mode The lens is adjustable so that the working distance can be varied between 130mm to infinity at 400mm from the work piece the field of view is a huge 35mm A fully controllable 16 LED light ring is built into the camera and a clever magnetic kinematic design allows the probe and the camera to be changed in just seconds 1 0 Camera and Probe swapping procedure 1 1 Set up a camera off set in Probe Status Window Firstly create a camera off set within the Probe Status Window this will allow you to measure parts using the camera tbe hate gihe Rar k 7 44 j D m n Din Pasthone i B 5 1 IE EIRE IR 2 Gomi camer Poman E Simt Tek T Remeh Bop omen Baas Retke T OH Aksie H B ass O Sar 1 Gand 1 Rack 1 No pais 0 To do this 1 Click on the Star drop down menu and select the camera option 2 If you have tool rack installed select the zero option from the Stylus Rack area of the window 3 Click on the Add button to enter the camera into the datumed Positions section Dahmen Pohan EES rv S Ek EE anna GE RE na IE Ee UGS Ad His d Rak 4 Right hand click mouse on the line and select Edit
31. he star probe in the stylus section of the Probe Status window You will now see a message box asking if you wish to apply the off set Aberlink 3D Software ed Do you wish to adjust probe offset Yes Will adjust Probe offset No wil adjust Camera offset If you click on NO you apply the off set to the camera if you Click on YES you apply the off set to the probehead Click NO to apply the off set to the camera The camera now has an ee lore which aligns it to the probehead allowing you measure parts with both camera amp probe at the same 84 time BA 1 od UNA ZE 819 ER U iari I nW op 7 1 1 bd dn 1 l Mad 1 DEU TS EAL Td 1 0 DE Ba oo 7 3 i EYE Z 181459 oae 0 0 19 b iJ i i d i ED T aT 2 15 ee d eel 7 Ctrl Mo oo cm i 1 AYO Z MAA OD 0 0 eB Sti 2 D I 1 i MA SIT V1 ST OE FE 1 DD fe eo oo 1 4 1 WA 18 T BZH Z 759 OSE 0 9 As the camera is now align to the probehead it is now possible to measure components with both camera amp prodehead at the same time Measure other circle with the probehead If you now re measure two circles with the camera amp probehead they will be Super imposed on top of each other 85 17 0 CAMERA SETUP When setting a machine up to a camera three things must be done Set Scales Set Offsets when using variable zoom camera Set Z Rot Firstly the camera needs to be calibrated so the scale is correc
32. hen a Measurement window will open exactly as before Centre Line measurements for Arcs and Circles may be done in exactly the same way 8 2 CIRCLES L 8 2 1 Measuring Circles using Edge Detection Make sure the Edge Detection measurement type button is selected When the Circle Measure function is selected the software will allow the measurement of circles by clicking on the image in 3 positions and then defining a measurement selection box exactly as when using the auto select function described in section 8 1 1 3 above However when using this function the user can only measure circles and the software will always require the image to be selected in three positions and a circular selection box created Arcs and Lines cannot be measured using this function 8 2 2 Measuring Circles using Centre Line Detection The centre line between the inside diameter and outside diameter of a circle can be measured automatically using this function in exactly the same way as described in section 8 1 2 above 8 2 3 Measuring Circles using Mouse Points n The Mouse Point function can only be used when using the Circle Line Arc or Point Measure functions When this button is pressed automatic edge detection is no longer used The user must click on the image at exactly the position that they wish to take a point As of version 30 10 20 the tip of the mouse selection arrow is used to define the exact position When using the Circle Meas
33. ia spas sk a E i Raid Clear Td bard ane Construct Set Ref LC fe Sat Circle Tera p bate F Pinbe Head Pmb cenre DERE A rere fo ere trae Pim w TEEF Plane Ma caL Bae p H R bal fam T ETH Partit Ch a E Te BIR RHL P L 51 Oi Giat arg IS Park S I Mom Rea Dia Had San am ITB fom E Bore Boss Fikh a oat Pa EE oe Lo Hy EIN iN TA 1E 159 TE oo T Tea N he 9 PT TAT ke 129 281 Once more click OK to accept the measurement It is possible that a piece of dirt or a discontinuity in the shape will bring the scan of the shape to a premature end For example if the hole is now selected as follows Here you can see that the whole circle was not scanned as it was disrupted by the uneven surface When the Measurement window pops up it will look like this annan E HHT Eg X a i e Ee ee e ciie Teipit T Bibe Head Probe centa APF l pag i Pre irae ee hinin Plane Ha Cat Base a Eer hanl Y haar ELE ear fT BIR ee Po z Wil Satarka 0 Eels Hie HIR pa Dia 2 15 zhp Sire ap EE sed i ham Seos Boe Pih ra jamin Si BE 1 taiii tii Viet 9 Seri ibi TE TE GEREF gt Er Now to fill in the missing part of the scan simply leave the Measurement Window open and click on the image again in the area that has been missed out Any new points scanned will now be added to the previous points and the Measurement Window will now look like this EE
34. iolet backlight and dashed cross hairs checked cw 15 12 09 Chapter 15 inserted for editing 30 24 15 C J W camera light settings for previously measured features 94
35. l EN EN MR klm j Ls 63 The Thread Measure tool will then be automatically fired and the points on the edge of the thread appear as they are traced around A results window will then open as follows kil al BIS GTL lee rae Be a z 2 Hi Z Al L l ae di Mel ee AE 0 4 ME IM HA ETE Fi The graph at the top of the Thread Form window represents the pitch of the threads measured The top value is the largest measured value the bottom value is the smallest measured value and the middle value represents the mean value for all the threads measured The lead trail and total angle of the thread are also reported As of version 30 10 51 these measurements cannot be printed out in the form of an inspection report however when you click OK on the Thread Form window a Line Measurement window will automatically open depicting the pitch line for the thread Lise Hicka mm ws RBA Section tel Pera Tale Liew Position i maag r j ao 2 k 0 000 L ERJA ma Points Fit EE gek N h re EET Y 400 ss 2 DODE DEM Line Tangata Pinbe Head Proe End 1 I Ip TH Pra dirai TER w ee REE EED Fiane Fa Base mo i ever hanl fan mast 10555 Repetto io Etar i Plunga a act Punta z hom EEE Fack K i TEN Hz 1E ra ERT Let Da ja ki o 1 E
36. l FE S000 Be ar ARR Boosie Y Ae R SS ae ai SHD SL and continue as many times as reduired Tuve Tarate E aT a retest z kam imi zm E L 2 Mari omie fom Rack PE T sie imi rg T E RE Pres raad l Ewer baal Fom TEE T I TTT RT SET BKR 1 R BRKT TRE didi ISRA l E ween Tee AD ry TAS bao 723 DOE irene amp asiel maa aise sooo soo WEL aan R 9 SIT ia Adee Sone 93 SB Te IT E a wide ai SHD 9HB as Iaa E SSR 14544 aise ogo 03 RT ia Iar RT asie TETE Aie so Bi RL 11 Iar R fase vaal AA so ate va la Ia t ass TT AT SBT 209 MET ima p adel dal ame Sado ae ieee dy The number of points taken is shown points have been taken in the top left hand corner pas BET Bd Sib U 2 Sik EKT 201 Sik 202 Fib 212 Bee 212 272 E sa 6 101 ETD 8 155 8 155 8 155 iE LET airi 4 DI Note on this inspection 2 834 The graphical picture of the Edges shows the measured points represented as small green circles Clicking Retake will erase the last measured point Clicking Clear will erase all the measured points but leave the Curve Measure window open Clicking Delete will erase all the measured points and close the Curve Measure window This is irreversible Clicking OK will accept the measurements The Curve Measure window will be closed and a representation of the measured edges will be drawn within th
37. l erase all the measured points and close the Circle Measure window This is irreversible Clicking OK will accept the measurements The Circle Measure window will be closed and a representation of the arc will be drawn within the Main screen Clicking Set Ref before selecting OK will cause the centre of the circle to be set to X 0 and Y 0 It is possible to recall the measured points shown on the grabbed image by using the Show Edge Pixels function see chapter 12 lt is also possible to make the points appear on the image prior to firing the measurement tool and then adjust the Edge Detection tools prior to taking the measurement by using the Edge Detection Controls see chapter 9 For more information about the Measurement windows and what functionality is available within the windows see chapter 20 The Measurement Windows 8 1 2 Measuring using Centre Line Detection This measurement type is used when measuring thin features where it may be difficult to create a selection box that measures only one side of the feature such as a thin line on a graticule Therefore when using this feature create the measurement selection box so that it covers both sides of the feature that you are measuring 29 Now when you fire the measurement tool both edges will be measured and the centre line between the edges automatically created Momentarily the measured points will be displayed as crosses on the image And t
38. l window Lighting x EE which can be conveniently sized and positioned on the screen for example as follows X 200 225mm 102 411mm E Sst me YAR GR A es of BY au es ars am Fed 1 14 Mei vr mde am woe Fia Wette sae I To turn on the top light right click on the ring light graphic below The pattern of LEDs lit will be represented by light grey dots Unlit LEDs will be shown as dark grey The number in the top left hand corner of the window denotes the percentage power being applied to the LED s which is proportional to their intensity brightness To increase the intensity of the LEDs use the slider bar at the bottom of the window vP Moving the slider bar to the right increases the intensity of the lit LEDs and as the intensity of the LEDs increases so the colour of the lit LEDs will become lighter At 100 intensity they will appear white To increase the number of lit LEDs use the slider bar on the right hand side of the window Moving the slider bar upwards increases the number of LEDs lit and moving it downwards decreases the number lit To change the position of the lit LEDs left click and hold mouse button on the ring and drag around the light ring to a new position R To turn the Light Ring off right click again on the light ring graphic To turn the ultra violet backlight on right click on the backlight icon at the bottom leit hand corner of the win
39. le 69 In cases where the edge of an image is not clearly defined increasing the averaging effect may improve the ability to determine the position of the edge In general if you have a good quality edge or are trying to measure a tight radius then the averaging should be kept low For poor quality edges or if the edge is quite straight then higher averaging may help The software provides 2 slider bars to adjust the averaging effect Averaging Side will adjust it in a side to side direction left to right across the screen and Averaging F B will adjust it in a forwards and backwards direction up and down the screen 9 2 Step Size The Step Size will affect the number of points taken for a measurement The number shown relates to the number of camera pixels between each point hence the smaller the number the more measurement points will be taken One measurement point taken every 6 pixels One measurement point taken every 39 pixels 9 3 Edge Percent In the Intensity v Pixel Position graphs shown above you can see that especially when averaging is applied that the step between dark and light is represented by a sloping line The Edge Percentage function determines at what percentage along this line that the measurement point is actually taken For Example 50 would mean that the point is taken exactly half way along the line As you adjust the Edge Percentage tool you will see the points move on the screen
40. ll fix the other end of the line Now as you move the mouse away from the line a selection box will be created as shown below Ra RE Tl oa s pn ER L ad a y C e ad N hy When you have created the box to the desired size enclosing the entire edge but only the edge being measured click again This will automatically fire the Line Tool and any edge within the selection box will be measured Momentarily the measured points will be displayed as crosses on the image 2 L A Line Measure window will then appear showing the measured points together with the best fit line through the points Lt REG Bed ke ee e a EE R Pamit Takei Lise Position 19E k L 0o00 Line Tanya ate Piobe Head Probe End Eri 2 FEE A Re om Pre revel EER 313 E haas rs Pine Ha Ca Ese K Con traal BTT v fwa jiems parrain Omi EA Das SL z hom ome Bae mm Y T N sr a Phir o Iiis aigo daar EO D 1 d aT L Thi b Camere ee ROSS We AAT SD piri TR SW D EA a k Paas The number of points taken is shown in the top left hand corner The i j and k values relate to the direction vector for the line and L is its length The length is shown in grey because it simply shows distance between the two points selected on the image It does not relate to any specific size on the component The graphical picture of the line shows the measured points represented as red ci
41. longer used The user must click on the image at exactly the position that they wish to take a point in exactly the same way as described when measuring a circle in section 8 2 3 above 8 4 4 Measuring Arcs using the Smart Edge function S The Smart Edge function can only be used when using the Circle Line Arc or Point Measure functions When this button is pressed the feature selected will be measured by using discreet points selected by the user similar to Mouse Points described above However when using this function the operator does not have to select the points exactly Simply click approximately in the area where you would like a point to be taken The software will then scan the adjacent area to find an edge and then take a point on that edge This function is exactly as has been described when measuring circles in section 8 2 4 above 8 9 POINTS i This function allows the user to define a line on the image and the software will take a measurement point at the position where this line crosses an edge on the image 8 5 1 Measuring Points using Edge Detection L Make sure the Edge Detection measurement type button is selected To measure a specific Point on the image click on the image at the position where you require the measurements to be taken A line will now become attached to the image at the position selected that will extend in both directions away from the point as the cursor is moved Move the cursor so
42. nder Zoom in the grid above Then measure a circle Fepeat this for all Zoom positions ta be set Then click fi nish Ca HE el Finish Click on next zoom level adjust cameras zoom level measure circle again Repeat for each zoom level used remember to change camera zoom level Click Finish Message will appear saying calculated offsets for zoom positions 1 2 Aberlink AD Calculated offsets message Click ok 9 16 2 Setting up Z Rotation Z Rot This compensates for physical mis alignment between the machine z axis and the mounting of the camera To do this measure a small circle approx 1 000mm with the camera in each quadrant of the image Avoid positioning the circle to far into the corner so to avoid lens distortion 2 Measure circle 2 in the top right hand quarter of the camera view then move the camera in the Y Axis 1 Measure circle 1 in the top left hand quarter of the camera view then move the camera in the X Axis 4 Measure circle 4 3 Measure circle 3 in the bottom left in the bottom right hand quarter of the hand quarter of the camera view You camera view then have now finished move the camera in measuring the X Axis In the Aberlink software you should now see four circles Superimposed on each other if they are not you need to set the camera Z rotation If the 4 circles are superimposed over each other like this If the 4 circles are not superimposed 4 over each o
43. ndow will be closed and a representation of the curve will be drawn within the Main Screen represented as a series of points Dimensions can be taken directly between the points by simply clicking on them Circles and lines can also be constructed through these points Also DXF Files can be imported and the measured points best fitted to the DXF file with the error of each point shown graphically see chapter 32 DXF Files Clicking Set Ref before selecting OK has no relevance for a Curve Measure It is possible to recall the measured points shown on the grabbed image by using the Show Edge Pixels function see chapter 12 It is also possible to make the points appear on the image prior to firing the measurement tool and then adjust the Edge Detection tools prior to taking the measurement by using the Edge Detection controls see chapter 9 Note that Curves do not have to be around a complete shape they will simply trace between the start and end defined by the user For more information about the Measurement windows and what functionality is available within the windows see chapter 20 The Measurement Windows 8 7 1 1 Measuring a Curve that is larger than the Field of View of the Camera If the edge being measured is larger than the field of view of the camera the user will be automatically guided to move the camera around the shape as required Define the Start Direction and End Point for the curve as describe
44. ntuitive based around a graphical interface operating under a Windows operating platform In normal use there are 2 primary windows Firstly there is the Aberlink Main screen which looks like this Y 076 834mm dT N EE AT 1 ad ar T L Mg be and then there will be the Camera Image window which may initially be black if no lighting is switched on see section 3 0 EIEN ee ee _ miej aar Ai NE SS a AE MR 3 G Measurements are performed by using the various measuring tools which are situated within the Camera Image window For all measured features a graphical representation of the feature is then created in the view area of the Main Screen Dimensions of size form distance between features and geometric tolerances can all be called up within this view These functions are covered in chapter 17 Bringing Up Dimensions on the Screen Typically for all systems with one monitor the Camera Image window will be used over the top of the Main Screen The Camera Image window can be used maximised or to access the Main Screen it can either be minimised or when floating it can be adjusted to any convenient size grab and drag the bottom right hand corner of the window as follows MET NEMERS WEE SE T TE CN oo CORR cee ae lt w ET RIR Riel LL Click and drag on blue bar to re position Camera Image window 2 ae ee WITT The Camera Image window can also be closed as with normal Windo
45. of the circle to be set to X 0 and Y 0 Having clicked OK it is possible to recall the measured points shown on the grabbed image by using the Show Edge Pixels function see chapter 12 8 2 4 Measuring Circles using the Smart Edge function E The Smart Edge function can only be used when using the Circle Line Arc or Point Measure functions When this button is pressed the feature selected will be measured by using discreet points selected by the user similar to Mouse Points described above However when using this function the operator does not have to select the points exactly Simply click approximately in the area where you would like a point to be taken The software will then scan the adjacent area to find an edge and then take a point on that edge Momentarily five crosses will flash on the screen as follows The two yellow and two green crosses define the area searched for an edge The cross in the middle of these represents the point taken on the edge The size of the area scanned within the crosses can be set in the Detection Tools Window see chapter 9 4 Select Size When using the Circle Measure function a Circle Measure window will automatically open exactly as when using the Mouse Points function Do not OK the Circle Measure window until a minimum of three points have been taken as above 8 3 LINES ad 8 3 1 Measuring Lines using Edge Detection Make sure the Edge Detection measurement type button
46. on any edge within the box perpendicular to the orientation of the box This may be useful for instance for determining the highest point on a gear tooth 8 6 1 Measuring Peak Points using Edge Detection L Make sure the Edge Detection measurement type button is selected To measure a Peak Point on the image click twice on the image to define a line perpendicular to where the peak point is to be measured Now move the cursor so that it creates a box encompassing the Peak Point to be measured Now click again This will automatically fire the Peak Point Tool and the highest point on the edge perpendicular to the selection box will be measured Momentarily the measured point will be displayed as a cross on the image 42 A Point Measure window will then appear showing the measured point in exactly the same way as for an ordinary point as described in section 8 5 1 above 8 6 2 Measuring Peak Points using Centre Line Detection The centre Peak Point between two edges can be measured automatically using this function in exactly the same way as described in section 8 1 2 above The Mouse Point and Smart Edge functions cannot be used for automatically determining a Peak Point 43 87 THE CURVE MEASURE FUNCTION ad This function allows the user to automatically trace around an edge taking a series of points on the edge of the feature This function allows complex shapes to be measured If the edge being measured is la
47. presenting the Field of View and the crosshairs and the XY readouts will temporarily turn green If the operator pauses the camera within the target area they will then change to red in colour the target square will disappear and the readouts will change to say STOP and ARRESTO The Camera Image window will then automatically reappear and the next part of the Curve will be measured Continue in this manner until the Curve gets back to the end point previously defined at which point the Curve Measure Window will automatically appear as described above 49 E 2 Section Nol 1 Points Taken Curve Template Pr rob Stat End End LR S Pre travel 0 345 E o 000 0 000 o 000 ce E Over travel ET y m fo coo 10 000 x Z ooo foooo ooo a Step Size 0 000 _ let Right k Plunge i Camera Af AA 104 896 3 651 96 740 105 073 3 631 AA 6621 104 655 3 6341 Rise 8 7 2 Measuring a Curve using Centre Line Detection i The Curve Measure function can be used to scan around the centre line between two edges by using this function in exactly the same way as described in section 8 1 2 above The Mouse Point and Smart Edge functions cannot be used for measuring a Curve 8 8 THE ONE EDGE FEATURE Ld The One Edge Feature can be used to measure a circle line or arc as a single feature using just one click on the image The software will scan the edge within an area adjacent
48. rcles The blue line is the best fit line through these points The straightness value for the line is shown underneath the graphic view together with a slider bar for changing the scale at which the errors are displayed in the graphical representation 22 Clicking Retake will erase the last measured point Clicking Clear will erase all the measured points but leave the Line Measure window open Clicking Delete will erase all the measured points and close the Line Measure window This is irreversible Clicking OK will accept the measurements The Line Measure window will be closed and a representation of the line will be drawn within the Main Screen Clicking Set Ref before selecting OK will cause the representation of the line drawn in the Main Screen to be aligned to the closest axis either X or Y It is possible to recall the measured points shown on the grabbed image by using the Show Edge Pixels button see chapter 12 It is also possible to make the points appear on the image and adjust the Edge Detection tools prior to taking the measurement by using the Edge Detection Controls see chapter 9 For more information about the Measurement windows and what functionality is available within the windows see chapter 20 The Measurement Windows 8 1 1 2 Measuring Arcs auto selected To measure an Arc on the image click on the edge at one end of where you require the measurements to be taken A lin
49. rger than the field of view of the camera the user will be guided to move the camera around to the required position hence large shapes can be measured The density of points taken can be defined by adjusting the Step Size in the Edge Detection Tools The number selected relates to pixels per point 8 7 1 Measuring a Curve using Edge Detection L Make sure the Edge Detection measurement type button is selected To measure a Curve around an edge click on the image at the position where you want to start the scan A line will now become attached to the image at the position selected that will extend in both directions away from the point as the cursor is moved Move the cursor so that the line cuts the edge of the image at the position required Ideally the line should be at approximately 90 to the edge and its length should cut one edge only When you have created the line of the required size and position click again This will define the start position for the Curve Now click on the image to one side of the start position This click will define the direction that the software will trace around the edge 44 Click here to define scanning clockwise around the shape Alternatively clicking to the left of the start point would define scanning anti clockwise around the shape Finally click again on the image at the position at which you wish to finish the scan Click here to define the end of the scan the Cu
50. rve will now trace around the entire outside of the shape in a clockwise direction from the start position until it The Curve Measure tool will then be automatically fired and the points on the edge will temporarily appear as the edge is traced around 45 When the Curve Measure is completed the Curve Measure Window will automatically appear Curve Measure E E 2 x FR E H section No 12 Points Taken Curve Point P osition Retake Clear Delete Plane Construct Set Ref Curve Template x ooo foooo fo o00 y gaas oo ooo z ooo foo oo Step Size fo 000 Probe Pre travel 0 096 Over travel 0 096 Plunge ect Points i 10 000 L 0 000 K L1 000 409 3801 109 0601 2930 109 3791 109 0841 2930 i0989 104072 293 EO Left C Right The number of points taken is shown in the top left hand corner The L value shows the length between the first and last scanned points and D is the length divided by 3 141 ie would be the diameter for a circular trace 46 The graphical picture of the Curve shows the measured points represented as small green circles Clicking Retake will erase the last measured point Clicking Clear will erase all the measured points but leave the Curve Measure window open Clicking Delete will erase all the measured points and close the Curve Measure window This is irreversible Clicking OK will accept the measurements The Curve Measure wi
51. sted using this slider to achieve the optimum image on the screen The Auto function must be switched off for the slider to work 3 Used By setting the Used to 92 this rouge pixel is filtered out of the image This could be a bright stop on 92 of Imade from camera the part 100 of Imaae from camera This slider allows you to filter out pixels from the very ends of the camera histogram A setting of a 100 best for a shadowgraph type application were the image is very much black or white A setting between 100 90 is best for a video camera type application were you have a lot of different shades in the image 4 Auto Button The contrast and brightness can be adjusted automatically to find the optimum setting by clicking on the Auto button This is done iteratively and so will take a few seconds Due to the iterative nature of this automatic setting the software will not search over the full range available It is therefore necessary to either have the contrast and brightness set approximarely correctly prior to using it alternatively you may have to click Auto more than once Note If auto button is swicth off when the camera window is open it is posible there will be no image in the window This is because some of the setting are incorrect readjust the setting or click on the auto button 5 Advanced Button Clicking this button displays the advanced camera functions 10 2 Advanced
52. t The offsets compensate for camera movement around a perpendicular axis within the camera housing If the camera has a number different zooms fixed zoom levels the software must have the same number of zoom level in the Zoom box at the side of the camera window Lastly the Z Rot Z rotation has to be checked and if necessary altered to compensate for physical misalignment of the camera to the machine axis To activate camera click on icon situated to the right of the top toolbar Sz get LUR To reveal set scales offset window click on the SetUp button ees at the bottom of the camera window MT le If using the USB camera with one a magnification delete additional zal zooms by right clicking here and click Decrease zooms F you only need one for the USB E camera n ZR a Oes when verpes Click on setup button to E set values follow prompts Set scales first fe JAN Mad sr fein Rane n korma 86 To calibrate you will need something which is calibrated and easily measurable i e clear defined edges for example a graticule with a known circle diameter If you are if you are using a camera with a repeatable mechanical zoom you need to set up a number of zoom levels in the set up box equal to the number of zoom levels on the camera To increases to number of Zoom levels in the zoom window click on it and selecting the increases zoom option from the menu 16 1 Setting scales
53. t sensitive to light from the ultra violet LEDs in the light ring 9 Auto Gain Exposure settings You can choose how the auto function works by click on these buttons Adjust Gain If you select this option you can manually adjust the exposure and the software will automatically adjust gain Adjust Exposure If you select this option you can manually adjust the gain and the software will automatically adjust exposure Adjust Gain Exposure If you select this option the software will automatically adjust both gain and exposure Note Adjust Gain Exposure is the default setting for the camera 10 Auto Focus Exposure mSec This sets the exposure when auto focussing Turn Around When the software auto focuses it will travel a set distant in one direction before reversing direction The set distant is entered in this box 11 0 TOGGLE VIDEO FEED When using the Camera Image window to take measurements as soon as the image is clicked on the software grabs that image in order to perform the edge detection functions To the user this may not be obvious as the grabbed image will be the same as the live image and in exactly the same position When the measurement is completed the software automatically reverts to the live image If the user wishes to revert to the last grabbed image at any point they can do so using the Toggle Video Feed button When the grabbed image is shown you will not be able to see the image change when mo
54. ted This will allow faster measurement as the user only has to select approximately where the point is to be taken It does however still require a reasonably good visible edge for the software to detect The area over which the tool searches for the edge point can be defined in the Detection Tools window 7 5 Cross Hair Points aa It is possible to perform measurements without using the software s automatic edge detection tools If the cross hair button is pressed the measurements performed will use points selected by the user To do this align the cross hairs over the feature you wish to measure to record the position of the point under the cross hairs simply click the left hand mouse button This may be useful if the component being measured cannot be lit in such a way as to produce well defined edges 5 1 Using the cross hairs as a protractor to measure angles RE aldan 4 Lan ad Ode H la ee HE ar MR Clicking on the edge _ Read the angle of with the R H mouse the cross hairs here button aligns the cross hairs to the edge E NMS ME Clicking in the centre with the R H mouse button re sets the cross hairs to 90 Deg es ceed It is also possible to use the cross hairs as a protractor to measure angles 18 To do this click on the screen with the right hand mouse button and the cross hair will turn to align them selves with the point you just cli
55. that the line cuts the edge of the image at the position that the Point is to be measured Ideally the line should be at approximately 90 to the edge and its length should cut one edge only When you have created the line of the required size and position cutting the edge at the position desired click again This will automatically fire the Point Tool and the point where the line cuts the edge will be measured Momentarily the measured point will be displayed as a cross on the image A Point Measure window will then appear showing the measured point NT TE es EE EE PALE Section tol gt Pst TERI are EE L SRN aa eg phen 2 Pam 4 ee EL PIE 14a der 3 TEE EN 14498 Clicking Retake or Clear will erase the measured point Clicking Delete will erase the measured point and close the Point Measure window This is irreversible 40 Clicking OK will accept the measurement The Point Measure window will be closed and a representation of the point will be drawn as a blue dot on the Main Screen Clicking Set Ref before selecting OK will cause the Point to be set as X 0 Y 0 It is possible to recall the measured point shown on the grabbed image by using the Show Edge Pixels function see chapter 12 It is also possible to make the point appear on the image and adjust the Edge Detection tools prior to taking the measurement by using the Edge Detection Controls see chapter 9
56. the probe head Before you close the message box replace the camera with the probe head when you have done that click OK You are now ready to measure with the contact probe 1 3 Changing from Probe head to the Camera To replace the probe head with the camera open the Probe Status Window select the camera off set Aberlink 3D Software Please replace probehead with CAMERA A message box will appear asking you to replace probe head with the camera Follow the prompt and change devices the LED s in the light ring will flash as the drivers are being loaded after this a second message box will appear asking you if you wish to open the camera window click YES Aberlink 3D Software Da you want bo switch the camera on now NG Cancel 2 0 CAMERA SETTINGS Aperture adjustment ring this ring sets the camera aperture it is nominally set at 2 8 lp N K This the focal point fine adjustment ring use this to fine adjust the field of view You can slide this ring up and down the lens body to change the camera focal point this increases or decreases the field of view this means as you increases the field of view you can see more of the work piece in the camera window if you decrease the field of view you will see less Fully controllable 16 LED light ring 3 0 USING THE CAMERA WITH ABERLINK 3D CMM SOFTWARE The Aberlink 2D Vision Software has been written to be extremely i
57. ther like this the Z the Z rotation is OK rotation needs re setting 92 To set the Z rotation go to the Tech section in set up Details Click on the Vision tab With the four circles still visible in the software Click on the set button This will enter a Z rotation into the Z rotation window seth eta Unita Display pasture Points Campeny Sare Rat Hall CME orais doyStick Probe Head hers l CNC pke Error Map Sedes Ecard Linits Graphis Diner p Marke tutaChangs Rack sim CAD iaman LS et Detauil Ap pny h Obst ree iN 0 v G Detail Lap Trae L B afeta Border huw Camera Z Rotsion Ma Sea Si B te C odd tea Tire Pa eek bpn pii sel USS ake Volume On via Hn Units Y TO After you have click the set button the camera rotation will appear here To check the Z rotation is correct re measure the four circles If the 4 circles are superimposed over each within 0 010mm then the Z rotation is OK 93 18 0 CHANGE HISTORY Date of Change Description of Change Changed by 23 10 07 Changed index 30 20 85 29 10 07 Setting up a camera off set add Lo EEN T Aligning probe head amp camera add 30 20 85 17 12 07 Cross Hairs button amp angle mode 30 20 87 CJH added CJH 11 01 08 Camera set up chapter added 30 20 87 CJH 14 04 08 Chapter 9 9 Detection graph added 30 20 92 has been added 23 11 09 Chapter 4 1 Camera light ring 30 24 15 C J H updated to include the ultra v
58. to fit a line all the way to the edge of the image Continuing upwards the scan continued until the line started to blend in with radius at the top When the scan of the line is complete the Line Measure window will automatically appear al secioni Pemra Take li Lice Position 150 Points Fit 0 alae E p EEDA VAA NEZA neha F n mm p uann m x PED VM DEE Fil DOOD CT i I LiT od ae 0 000 m MG Fad ca ear Dad bal Pik lC mmt Set Ref Lre Tanyiate E Probe Heard Probe EES End1 Emi DERE es te ES ed ham E feam ia1 523 Pine Ha Car E Kate Cwor hasl HY Ai haas 790599 Farran 0000 grar Plunge vad Pana z how omo bau b Y i pau r ma mol i Let cat amh ad ME n ORE MET TER TEI Tea JKS ae et TR JKS ted TE If happy with the results click OK to accept the Line measurement Now click once on the arc at the top of the image Once again two green and two yellow crosses will be displayed showing the area over which the edge is scanned adjacent to the initial mouse click The 52 software will recognise the shape to be an arc and continue its scan to the left until the arc blends with the straight line previously measured and to the right and it blends into the next radius Again when it finishes its scan the Measurement window will automatically open Cire iz 483 449 4 4 9 ao E 130 076 D Pnimis Fit bamm T tam EI F Ean AR 16 22 Dan
59. to the mouse click in order to determine what shape is being measured and then extend the scan in both directions either until it reaches the edge of the field of view of the camera or blends in to another shape 8 8 1 Measuring with the One Edge Feature using Edge Detection L Make sure the Edge Detection measurement type button is selected Click on the image of the edge that you wish to measure The software will then scan the adjacent area to find an edge and determine what type of a shape it is Momentarily two yellow and two green crosses will appear on the image showing the area being scanned The edge will then be measured in both directions away from the initial scanned area either until it reaches the edge of the field of view or else the feature blends into a different feature In the example below the image was clicked on the straight edge on the left hand side of the image The two green and two yellow crosses determine the area over which the edge is scanned adjacent to the initial mouse click The size of this area is configurable in Detection Controls window using the Select Size slider see chapter 9 4 The software will determine what shape is being measured from the scan within the area defined by the crosses It will then continue the scan for that shape in both directions In the example above the edge within the initial area was determined to be a line Continuing downwards from this area the scan continued
60. trast required for the software to detect an edge will be this percentage of the contrast achieved when the program was originally created 9 7 Colours Edge Points and Measurement Tools The colour of both the measurement points and the measurement tools can be chosen to suit the user and component being measured Clicking on the appropriate Set button will bring up a colour palette allowing the user to select their desired colour Having made adjustments to the Edge Detection tools when you are happy with the measurement points shown on the screen simply click on the Measure button to fire whichever measurement type tool is selected The OK button will close the Set Up window 9 8 Focus Boxes The focus section of the camera set up window is used to set up and adjust the auto focus function Image Box 1 is used to set the course feed amp range Image Box 2 is used to set the fine feed amp range Direction Traverse this is how far the camera moves when auto focus Turn Around if the camera reaches this point without focusing it reverse direction to focus in the opposite direction 9 9 Detection Graph Detection l S Default C First C Strongest C Second C Sharpest T Third East M Dark Ta Light M Light To Dark Under the detection graph there is are a number of options which change the way the camera
61. ure function a Circle Measure window will automatically open showing that one point has been selected ee ag Peis Take Cine Cotten l X d z EES cincia Terina mers Probe Head ree EE TT gma EE aese fo 1 k fom Plane Hy isan Se N Cwe tral fies Ram Feret 0000 EE i ee EE Pia 08 Bien a a0 T i HH pos ose Ph 2000 Dia T 1 00 at BEE ee SW Db STITT Vier FEE Click again on the image at different positions around the circle to take further points After the third point the software is able to calculate the required circle and a graphical representation will be shown as follows ee US MEE 2 e Paca Take 3 Chile Teripiete Te Pinbe Head Cena oe ERE HE Pra rd aa ke pidis Faneto EL Basie fo Over raal Eg haal aot SS aL aa FT GE Er Points cI pim atama O Boek T Dia Pai Sien Sm EO ciO el ES G gwa rr Da fom S STT aimn eee Jiris Win BMD His 33 ToT elem 309 ET A56 BEG jek Giel 4a tea dy E SR D The X Y and Z values relate to the centre point of the circle and D is its diameter The graphical picture of the circle shows the measured points represented as small red circles The larger blue circle is the best fit circle through these points However the software can always construct a perfect circle through three measurement points and therefore at this stage the roundness value for the circle will be blank You can add as many points as you like to
62. ure tool will then be automatically fired and the points on the edge will temporarily appear as the edge is traced around A Curve Measurement window will then open as follows Curve Measure HR ed x FT H Section Nal 1 Points Taken Curve Point Position Li S vy a 28 L 768 084 D 244 489 Retake Clear Delete Plane Construct Set Ret gt ka Curve Template Start End End IE Probe Head A AXIS lo Probe Pre travel In 000 x o 000 0 000 0 000 Ouer travel R nD B Axis jo E o 000 0 000 0 000 Star Y BEE EE EE Z a oaa fo o00 fo o00 i 0 000 EET Rack Step Size o 000 j 0 000 k 1 ao EA f Lef C Right X SZ Feed E1 185 687 122 902 500 0 195 687 122 902 500 0 195 587 122 902 5 101 198 687 12 0 000 0 000 500 0 If you then wish to add more edge grabs into the same unit simply move the image to the next position required a ar i Ed ad Eran and click once on the image again o Cerne Meanie O Mal i i Br Sector n Euni Poi Position Surve Tarate lt i at 1 TETEE z fom pmi pim Sien Sica imt Let K ST TE S IE e e T e a E TESE eB i mn E e e e A a Hel Wine BIT Eer T IOT R asiel TIRI TR SHD SIE TW ET MASS MATE i lOd amp Sasi A ABE 00 SISIE ae BEE Boosie n irate PT MSI via aie SHD HRBL TW dal AES Boosie Mires amp SSR 145144 AisEl ooo poe 19199 AEE Boosie Y dial E asie wis i
63. use the largest possible selection area that will grab only the edge required 8 8 2 Measuring with the One Edge Feature using Centre Line Detection The One Edge feature can be used to detect the centre line between edges in exactly the same way as described in section 8 8 1 above The Mouse Point and Smart Edge functions are not applicable when measuring using the One Edge function p 8 9 THE ALL EDGE POINTS FUNCTION m As with the Curve function described in section 8 7 above the All Edge Points feature will trace around edges within the field of view However rather than having to define a start direction and end on one specific edge this function will grab all edges within the field of view with just a single mouse click The All Edge Points feature works particularly well when the edges being measured are clearly defined The density of points taken can be defined by adjusting the Step Size in the Edge Detection Tools The number selected relates to pixels per point 8 9 1 Measuring All Edge Points using Edge Detection Make sure the Edge Detection measurement type button is selected Position the camera so that the edges required are within the field of view Note that when using this function all edges within the field of view will be measured even if the camera image window is zoomed in so that the whole field of view is not visible on the monitor F Fj Nl Now click once anywhere on the image The Curve Meas
64. used for automatically determining the centre line between two edges on the image that are within the area defined by the user in the measurement selection box A typical use for this function would be when measuring very thin features for example the lines on a graticule It may be very difficult for the user to select one side of the line or the other simply because it is very thin Therefore using this tool they can drag the measurement selection box to cover both sides of the line and the software will automatically produce the centre line between the two edges 7 3 Mouse Points E It is possible to perform measurements without using the software s automatic edge detection tools If the Mouse Points button is pressed the measurements performed will use points selected by the user by clicking with the mouse on the image This may be useful if the component being measured cannot be lit in such a way as to produce well defined edges 17 7 4 Smart Edge bie This function allows for a combination of automatic edge detection but only at specific positions as defined by the user Similar to the Mouse Points function above when using this function the measurements performed will only use points defined by the user when clicking on the image However rather than carefully having to click on the exact position where they want the point taken this function fires a tool to detect an edge point in the area around where the image was selec
65. uttons now perform the zoom and pan functions Therefore the button must be pressed again to turn this function off before any measurements can be performed 6 3 1 Panning Another function of this button is to allow panning around the image The field of view of the camera is approximately 16mm across diagonal corners If you are zoomed in so that only part of the field of view is visible in the image window it is possible to pan around the full field of view by left clicking and dragging the image This function allows you to quickly view the full field of view without the need to move the X and Y adjustment wheels Please note that the Zoom and Pan button is latching Whilst pressed no measurements can be performed on the image as the mouse buttons now perform the zoom and pan functions Therefore the button must be pressed again to turn this function off before any measurements can be performed 16 1 0 THE MEASUREMENT TYPE BUTTONS N t faa hul 7 e Before starting to perform measurements select the Measurement Type required by clicking the appropriate button as follows 7 1 Edge Detection L When this button is selected the software will determine a single edge between different colours or shades of colour on the image within the area that user defines by their measurement selection box This is the usual format used when measuring the edge of features on a component 7 2 Centre Line Detection This button is
66. vel 1 setup box upper right for the USB camera there is only one zoom level Click next Filter Points over jo Sigma Max Points D Calibrate Actual Diameter i N Edit Cancel Het Enter actual diameter of circle in actual diameter box i e 1 00mm Click next Measure the 1 00mm circle 88 Click on edge of circle at 3 egually spaced positions by the third click the circle should overlap the image left mouse click now determine the edge detection area by moving the mouse left click to measure Dome tall toe al If you are using a camera with a mechanical zoom you must repeat the above for each zoom level of camera Remember to change zoom level in setup box each time by clicking in zoom section of the setup window 89 16 2 Setting up Offsets repeatable manual auto zoom only Note The camera must be calibrated set scale for each mechanical zoom levels Click on set offsets Choose a circle that can be displayed at 2 3 size of display screen at about X200 magnification Centre the image it is helpful to use the cross hairs radio icon see screen shot below To MOE SL ae Aas a La l ER OUT E a E K eee ta K K Cross hair at full X200 magnification Click on zoom level 1 change from cross hair to circle measure circle 90 Filter Points MaxPoints Calibrate Click the offset you wish to set iclick on the number u
67. ving the machine in X Y or Z To revert back to the live image simply click on the Toggle Video Feed button again 12 0 SHOW EDGE PIXELS s It is possible to review the last measurement points taken by using the Show Edge Pixels button Clicking on this button will bring back the last grabbed image and show the measurement points taken as crosses on the image To revert back to the live image simply click on the Show Edge Pixels button again Q 13 0 CAMERA RESOLUTION The Camera can be run in high resolution E or low resolution depending on the camera type Clicking on the icon will toggle between the two Using high resolution the full number of pixels 3M on the camera are used This improves the quality of the image but may slow down the speed at which measurements and calculations can be performed Using Low resolution the software uses every other pixel on the camera Hence the quality of the image will be slightly inferior but measurements and calculations will be performed faster Sb 14 0 SAVE IMAGE ET The camera image may be saved as either a bitmap file bmf or as a Tif file by clicking on the Save Image file This will bring up the following window Save jn O My Documents d E EF EJ Documents Desktop My Documents 9 My Computer od i E Saveastyne Windows Bitmap T brp Cancel Places B dows Bitma brn i l j Allowing the user to name and save the im
68. ws functionality To open the Camera Image window simply click on the Camera Icon Switch Camera On Off 4 0 TAKING MEASUREMENTS USING THE CAMERA IMAGE 4 1 LIGHTING The camera is supplied complete with two controllable light sources in a ring light around the Camera This consists of 8 white LEDs and 8 Ultra violet LEDs which can be lit in any contiguous pattern with their intensity position and number controlled The 8 white LEDs will typically be used for lighting the top surface of a component being measured By changing the direction of lighting from one side or another the clarity of any 3D edges on a component can be optimised The 8 Ultra violet LEDs when used in conjunction with an Aberlink back light plate can be used to backlight the component This will typically be used for silhouetting a component when measuring around the outside or any holes or transparent features within the component Note that any light settings used during the inspection of a component will automatically be recalled if using the Play function to measure further components of the same type You can switch between top lighting white light and back lighting Ultra violet light by clicking on the Light Control icon with the right hand mouse button Ls You can get more control over the intensity and direction of the light ring by clicking on the Light Control icon with the left hand mouse button this brings up the following light ring contro

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