CIS User`s Manual_VS_3.2
Contents
1. Basie ClS Operation EE 15 2 7 GRIN lens operation E 15 28 GCa tionsfor installation NEE 16 2 8 1 Ele trostatic discharge oer csc z seeps or esck eral eette aia ea aaia e atei 16 28 2 Window damage EE 16 28 3 LED Shielding eieiei 16 2 8 4 CTIA COMMS eed oO E ad a oe nated ee eer a BN 16 3 Electrical Int rfacingi EE 17 Nd le e BE 17 3 2 Connectors cables and EISE dergdeee Eder 17 3 2 1 Power connector Type 03221 CIS 4 25 dpi CIE 17 3 2 1 1 Power connector Type 00091 MiniCIS Ai 18 3 2 1 2 Power connector Type 03974 modular CIS MIDICIE 18 3 2 1 3 CameraLink EE egesese ieeeeen Eder Eeer 18 Sie WA ONIONS ele 19 Sel Data EE 19 3 2 1 6 Serial communication s ccciadee2 nice Ee deeg Eddie 20 C ntrol COMMANGS EE 20 3 3 Status COMMANOS EE ee ee de GE 20 A SCANM COMINGS E EE AE E A diate tenets 21 E EE EE 21 BiG SStUp COMMANAS 4 perce cahdadet pee scott ahead sauehi deeg Hac e TrA etie ge 22 3 7 Calibrating the Shading Correction cies cess steckcn sedative tbietearediceeeeielavaseieteeneenaveloieeeeese 23 3 7 1 Calibrating the Shading Correction HGP 24 3 8 Difference between real pixel count and logical pixel coumt 25 4 CIS handling instructions 4 cccerpecctoseathien dak iteenadetea eis odentrdeniacedineateisldac le eaves data sian 25 4 1 Electr statie discharge EE 25 4 2 Protecting Against Dust Oil and Scratches AAA 26 4 3 Cleaning the Sensor Window ANEN EEN 26 4 4 Proper Grounding of the Cl EEN EEN2. execute ClSKonfigurator exe choise the typ of CIS which you want depends on your requirements 1 figure 1 choise the type of color depends on your used object 2 figure 1 choise the resolution depends on the smallest error or accuracy which you wish 3 figure 1 choise the scan width depends on the size of the object 4 figure 1 after you choose parameter 8 and 4 the configurator will show you the pixel size and the maximum pixel count of the unit 5 figure 1 type in the line rate 6 figure 1 depends on your transport speed and the configurator will caculate the possibility and the CIS version K its also possbile to type in the transport speed 7 fiure 1 and the Configrator will calcualte the line rate which will be needed Choise the light source depends on your used object and error type 8 figure 1 The light source color 9 figure 1 depends on 2 figure 1 and the color of the object If you choose an Color sensor in 2 the light source will be automatic RGB If you have an object which could be have different colors than its better to use a white light source Optionally the MAXI CIS has an external trigger connector over RS422 10 figure 1 This is useful if an direct trigger to the CIS is necesseray After the configuration it s possible to print out 11 figure 1 the unit specifications 12 figure 2 Page 30 of 30 de Ti i CIS Configuration Fie Lists Options Help Produet MIDICIS Ze MAXI
3. because the object under test is not flat 2 1 3 Illumination e Single sided or dual sided internal LED lighting is provided either a single color or a mixture of colors with several different wavelengths e Equivalent external LED sources under CIS control are available for backlighting e Single piece cylinder lenses provide high uniformity and variable focal distance Special shaped lenses may be used for even higher light output 2 1 4 RGB Modus We are able to build all CIS Versions in color For this we use a monochrom standard Sensor with a LED RGB light source We flash the different LEDs red green and blue Over the firmware and the electronic we give a full RGB image over the CameraLink connector out 2 1 5 Software control e A simple ASCII protocol controls parameters such as line rate exposure trigger mode and flat field correction e All controls are handled through the CameraLink embedded serial port e Every code line ends with char 13 e The pixelcorrection includes more than one layer and needs also ENTER between the layers Regulatory compliance e IEC 60204 1 Electrical equipment of machines Part 1 General requirements e JEC 60285 1 Safety of Laser Products e EN 61010 1 Safety requirements for electrical equipment for measurement control and laboratory use Part 1 General requirements e EN 61326 Electrical Equipment for measurement control and laboratory use EMC requirements e EN 61000 E
4. l The last menu is the command menu Here it s possible to turn the light on off and to reboot the camera Also the terminal is over the terminal button 12 figure 5 available where you could type in the commands directly More about commands in 3 3 of the documentation The terminal 13 figure 5 works like a usally terminal software i e hyperterminal The grayed out buttons 14 figure 5 are currently not available d TiViCISIF VO 34 Camera Software Version Y VA Tichawa Vision GmbH Status Options 1 Red means not connected PC e Camera Link Cable Temperature Connect Camera Terminal CameraT emp ZE Setting up communication with the camera Page 27 of 27 Figure 1 Status TiViCISIF VO 34 Camera Software Version WD VA MINICIS 7 60 Tichawa Vision GmbH Status Options Sensor Info Parameter Commands I6 C Serial Port e Grabber s DLL Reconnect camera altel Exit Connect Camera Terminal CameraT emp 30 eG Figure 2 Options TiViCISIF VO 34 MINICIS4 1 60 Tichawa Vision GmbH m Status Options Sensor Info Parameter Commands MINICIS Type 8 A6 104mm Resolution 600 aps Real Pixels 2496 Logical Pixels 2496 Max Line Rate 2193 Hz TViName G_MINICIS4_A6_1_600dpi_ lt _ lt General CIS Parameters XxxX SENSOR XxxX of Sensor Boards 1 of Colors 1 Total of
5. 1 Triggered by CC1 LED mode 2 Triggered by external optional LED mode 3 reserved reserved Ser mgger mode EE mode 4 Free running neon lamp optional mode 5 Triggered by CC neon optional lamp mode 6 Triggered by external optional neon lamp Sets line frequency in free Line Frequency ves F freq lt CR gt freq 100 running mode to freq in Hz running mode see note 1 Sets exposure time for Exposure time E SEN j ee Color X exp lt CR gt cane ine Sets exposure time in us see note 2 Light on off L value lt CR gt rca clan OF Turns the light on or off Table 3 Scan command list Note 1 If the requested frequency has a shorter period than the exposure time in any channel the command is ignored and an error message is returned Note 2 If the requested exposure time is longer than the period set by F in channel x the command is ignored and an error message is returned 3 5 Image data commands The CIS includes capabilities for correcting darkfield and brightfield non uniformities for setting output levels and for collecting image data statistics The commands controlling these functions are shown in Table 5 For enabling and disabling the correction see Table 7 Command Syntax Value Effect EE Divalue value lt CR gt value 0 64 eer S eve aaa Bivalue value lt CR gt value 0 255 ZE ae value 0 Initiate correction C value lt CR gt ee ee v
6. 4kHz 8 4 3 7 kHz 2 Table 2 Sensorheads 2 4 MidiCIS Models e Hat Line Scan Camera e Scan width 130 260 390 520 e Line rates up to 40 kHz e 100 200 300 400 600 900 1200 2400 dpi corresponding to approx 4 8 12 16 24 36 48 96 dots per mm e up to 49536 Pixels e Integrated Shading Correction e Camera Link Interface e Built in Light Source A Optics e Interface Cable for Multinead Version has a length up to 5 Mtr e RGB or Monochrom Page 11 of 11 2 4 1 cross section of a MidiCIS 80 00 2 5 Modular CIS e Flat Line Scan Camera e Scan width 130 260 390 520 e Line rates up to 40 kHz e 25 100 200 300 400 600 900 1200 2400 dpi corresponding to approx 1 4 8 12 16 24 36 48 96 dots per mm e up to 49536 Pixels e Integrated Shading Correction e Camera Link Interface e Built in Light Source A Optics e Interface Cable for Multinead Version has a length up to 10 Mtr e RGB or Monochrom Page 12 of 12 2 5 1 cross section of a modular CIS 128 00 Power Connector 2 5 2 Power Consumption Table 1 shows the typical power consumption of the sensor array and associated electronics and the illuminators These are calculated using a 16 KHz scan rate Changing the scan rate and therefore the illumination duty cycle will change the power consumption of the illuminator Length 520 1040 1560 2080 2600 3120 mm Sensor W 14 28 42 56
7. 70 84 Light W 17 34 51 68 85 102 Table 1 Power consumption 2 5 3 Operating requirements All models require careful attention to heat sinking Although operation in free air is safe the CIS should be firmly mounted to a heat conduction surface to maximize heat transfer from the illuminator to maximize LED life and to avoid heating the sensors unnecessarily The case temperature should be maintained in the range of 0 to 40C At temperatures below the local dew point condensation can form on the window both inside and outside At such temperatures it may be necessary to provide heated air to raise the window temperature When mounting the CIS use all mounting holes in the base Use the largest diameter bolts that will fit through the holes generally M4 or 3 16 Use lockwashers or the equivalent on the nuts Provide support near the CIS for all cables to minimize stress on the connectors Page 13 of 13 The permissible storage temperature range is 10 to 60C Bring the scanner to within the operating temperature limits before applying power Resistance to shock and vibration complies with EN 61010 1 Windows and glass rods must be taken out to comply The CIS is not sealed Keep moisture and liquids away from all areas Page 14 of 14 2 6 Basic CIS Operation Correct operation of CIS depends on an understanding of the basic arrangement of the components These are shown in Figure 1
8. Figure 1 CIS component layout Illumination is provided by a row of LEDs and focused on the object to be viewed by a cylindrical glass rod Light reflected from the object is focused on a row of silicon detectors by a solid array graded index GRIN rod lenses The distance from the object to the input face of the GRIN lenses is equal to the distance from the output face to the sensor surface The operating distance from the outside of the window to the surface of the object can be in the range of 0 to 14 mm and is preset at the factory The depth of field is approximately 20 of the distance from the window to the object plane and centered on the object plane For transmissive objects the internal light source may be omitted and replaced by a source behind the object In special situations both front and back sources may be used A second front source may be added to the other side of the sensor for symmetrical front illumination 2 7 GRIN lens operation GRIN lenses are a stacked array of glass rods each having an index of refraction that increases from the center to the outside This index profile causes light rays entering a GRIN at an angle to be bent back towards the center of the rod As a result the GRIN acts as a lens that will focus rays originating at a specific distance from the input face on to a plane the same distance from the output face Rays originating closer or farther away than the focal distance will not be sharply fo
9. constant lighting in comparison between a CIS and a conventional line scan camera Under ideal conditions Ulbrichtkugel a conventional line scan camera shows a typical PRNU of 10 In real conditions the amplitude usually falls down to a half at the rim of the image area due to the lens and the Law of Lambert Typical for a CIS is a PRNU of approx 30 however it can be reduced by internal correction down to 1 2 1 16 At which Bit does a CIS operate The industrial CIS internally operates at a 10 Bit resolution after correction 8 Bit are read out In scanners ClIS Elements are operated at resolutions between 12 and 16 Bit 1 17 Is there a difference in focus of an image taken by a CIS compared to a conventional line scan camera The focus of a line scan camera is mostly limited by the lens At high line rates you have to open the aperture almost completely The B W transition is usually 3 5 pixels The transition of a CIS is 1 2 pixels 1 18 What is the spectral sensitivity of a CIS like Alike with CCD or CMOS cameras the pixels of a CIS are made of silicium and show as a typical features their peak of spectral sensitivity in the near infra red light 1 19 Is it possible to build a sensor without gaps The elements of a CIS are made of lined up chips At the joints there is either no interference 25 200 dpi or interpolation is already effected by the CIS 1200 2400 dpi All in all the distortion observed with a
10. hardware performing a memory test reporting any errors and by restoring saved parameter settings and correction coefficients The CIS will report a list of available commands after the startup sequence has been completed Information on the status and configuration may be requested at any time using the commands in Table 3 All commands are case sensitive Command Syntax Effect List available GEET lt CR gt Displays command list Show software version v lt CR gt Displays software version Show current e parameters lt CR gt Lists current settings Save current parameters S lt CR gt Saves current settings Get Temperature teCR gt oS the temperature inside the Get Replace Flags r lt CR gt Shows the Replace Flags Get channel to pix j Channel lt CR gt _ Displays channel to pixel numeric Get pixels to chan i Channel lt CR gt Displays pixel to channel numeric Get analog Gain g lt CR gt Displays gain level Get analog Offset o lt CR gt Displays offset level Get Chan Stat c lt CR gt Displays channel statistic Get Sensor Character lt CR gt Displays Sensor Specification Table 2 Status command list Page 20 of 20 3 4 Scan commands Scan commands select the operating mode and set scan timing in the free running not triggered mode Table 4 shows the scan control commands Command Syntax Value Effect mode 0 Free running LED mode
11. storage of the CIS Tools should never come in contact with the window surface The CIS should be stored only in containers where it is not properly secured to prevent contact between the window and the container Scratches diffract incident illumination When exposed to uniform illumination a sensor with a scratched window will normally have brighter pixels adjacent to darker pixels The location of these pixels changes with the angle of illumination 4 3 Cleaning the Sensor Window Use compressed air to blow off loose particles This step alone is usually sufficient to clean the sensor window If further cleaning is required use lens cleaning paper moistened with alcohol or acetone Lint free ESD safe cloth wipers that do not contain particles that can scratch the window may also be used Whatever the technique used always wipe the window carefully and slowly 4 4 Proper Grounding of the CIS The CIS is grounded via the Camera Link Cable Shield Be sure that the Data Processing Equipment at the other end of the Camera Link Cable is properly grounded especially in applications with zero working distance where the material under inspection might build up very high electrical charges and feed them directly to the CIS When grounding the CIS please keep in mind to keep it isolated from machine ground to avoid ground loops 5 Software 5 1 Tichawa Vision User interface 5 1 1 Install UI It gives 2 options to install the UI a exec
12. 00 of the digital bright value The correction mechanism typically employs a digital gain of 1 2 with starting value 1 start a shading correction calibration cycle using the CO command PHASE 1 Measuring the pixel dark values The CIS will ask you to switch off the light and will turn off its internal light source s Please avoid any stray light since it will deteriorate the results After all lights are OFF then press any key to continue The CIS will average over the number of lines specified using the Q command and save the results PHASE 2 Measuring the pixel bright values The CIS will ask you to turn the light on and will turn on its internal light source s After all lights are ON then press any key to continue The CIS will average over the number of lines specified using the Q command and save the results PHASE 3 Calculation and Storage The CIS will calculate and load offset and gain correction values for each single pixel When you are satisfied with the result you can store the pixel correction values permanently using the command NOTE 2 Statistic Data will be grabbed after the pixel correction and therefore Page 23 of 23 submitted by the correction values 3 7 1 Calibrating the Shading Correction RGB The diffrence to the monochrom correction is that 3 lines RGB has to be in range 3 7 Not only one line Sensorboard 200dpi Sensor Chip 1 Sensor Chip 27 Pixel 1 64 Pixel 1664 1
13. 26 5 EE EE 26 5 1 Tichawa Vision User interface eegene ee EE 26 Salk astal Eeer ee Gegen e 26 5 1 2 Handling of the User mtertaege ENEE fecetinnssudeetduaetectesbeeeuaticeteesvedeteeaiiaee 26 5 2 Tichawa Vision CIS configurator se ciccesciceeredecaccnpdenevernds cadanndoraveueds caucendoneee tebe ENEE NENEEdE rs 29 5 2 1 Install CONN GUIAION cae Acne te cue ects ids oe Senate a ae Aiea dae eae ede oe 30 5 2 2 Handling of the Configurator regeert eene Ee 30 5 3 Short introduce for Camexpert Dalsa Grabber Software and Camera File 32 6 Tro bl shooting EE 32 6 1 Simple problems ei SEENEN a a R AE See 32 6 2 Troubleshooting using the serial interface sessssesennrrreeessereenrrrnrrssrrrrrrrnnnrsserrrrren ne 32 6 3 eler 33 6 4 Safety TEE 33 Page 4 of 4 1 Frequently Asked Questions 1 1 What is a CIS sensor A CIS is a compact line scan camera which is mounted directly to the object under inspection as we can know it from fax scanners or document scanners The CIS consits of a scanning line a SELFOC lens and a light source 1 2 What is the difference between a CIS and a conventional line scan camera The sensor of a conventional line scan camera is small 10 50 mm length with small pixels 5 20 um and reducing optics The sensor of a CIS is as wide as the object under inspection up to 4 m the optics produce images ata 1 1 scale 1 3 What are the advantages of a CIS compared to a convention
14. 728 Camera Link Data Port A d Pixel 1 Pixel 1728 Pixel 1 Sensor 1 Sensor 2 Port B hee i p 3 Pixel 1 Pixel 1728 Pixel 1 Sensor 3 Sensor 4 Page 24 of 24 3 8 Difference between real pixel count and logical pixel count e real pixel are actually available and useable e logical pixel are available but not useable If you have an odd count of sensors which are transferred over more than 1 CamerLink port you will automatic generate virtual dummy pixels e g MiniCIS A4 27 Sensors 1 Dummy Sensor ULLAL Sensori COR VVVV UV UT V YT VVVTV VV VV IVY Sensor 1 7 Sensor 8 14 13 Sensors 1 Dummy Sensor Pixel 14 Sensors middle CameraLink Port 14 Sensors 13 Sensors 1 dummy Sensor 28 Sensors o real pixel dummy pixel logical pixel 4 CIS handling instructions Although the CIS is housed in a rugged aluminum enclosure certain precautions are necessary to prevent damage to the electronics and to the window 4 1 Electrostatic discharge The CIS sensor contains optical sensors and high bandwidth electronics susceptible to electrostatic discharge Please treat the sensor and its CameraLink ports according to standard ESD guidelines such as e Avoid static charge buildup e Always ground the sensor and related equipment before electrical connection Special care is required in environments like transport of webs foils and p
15. CIS TUBECIS IC Monochrome Color 2 r Sensor l Resolution 200dpi D Pixel Size E mm Scan Width fst mm Number of Pixels 4036 i Line Rate r Transport Speed 6 gt Required EY kHz 500 mm sec K1 K2 K3 K4 RGB kHz Light Source 8 Internal 8 C External Brightfield Illumination Backlight Light Source Color Amber Red IEN Encoder Option 1 0 Extemal Trigger over RS422 direct to CIS For higher speed or other special options please contact the product manager Calculation Configuration intemal Printout Figure 1 Configurator Interface Page 31 of 31 External Printout loj x Edit G_MXCIS 6516 6260 11 AM 1 8 516 mm 206dpi 20 66 kHz Trigger RS422 Licht amber rot intern einseitig Anzahl der Pixel 4696 Transportgeschwindigkeit 2566 mm sec Camera Link Schnittstelle Base Configuration Anzahl CL Anschliisse 1 Anzahl CL Ports 1 Gesamtdatenrate 81 9 MByte Datenrate CL Port 81 9 MByte Linienbreite ca 1mm Arbeitsabstand ca 16mn Tiefenscharfe ca 1mm Shading Korrektur fAlu Gehduse Querschnitt 86 5x128mm mit verklebter Glasplatte siehe Zeichnung Versorgung aus 24 1 UDC Kameralink Konfiguration Camera Link 1 Port A 0 4696 Weitere Angebotspositionen Powerkabel WK5_03_1 5_P024 X_X X Powersupply G_POWER_ADC_24UDC_XXX_AMPH Cameralink Kabel WKK_CL_MDR_XXXX Verpackung U CIS 516 Figure 2 Configu
16. CIS is smaller than the distortion of a lens and more easy to correct linear context no polynom necessary Page 6 of 6 1 20 What do I have to take care of when install a CIS A CIS is much closer to the object under inspection than a conventional camera Therefore There should be some protection to avoid that the objects jam up or fall off and damage the sensor You should take precautions against ESD especially in applications with glass and fast running synthetic fabrics as well as with all other materials which are charging statically lt CIS sensors with internal light source are as all other LED light sources subject to the Laser Protection Regulations usual protection class III A You have to obey the relevant regulations 1 21 Design Rules and Choice of Materials 1 1 1 Software Standards and Test Methods e Software is subjected to the methods carried out at Tichawa Vision No additional tests or verifications will be done 1 1 2 Firmware Standards and Test Methods e Firmware is subjected to the methods carried out at Tichawa Vision No additional tests or verifications will be done 1 1 3 Choice of Materials e No limitation on the materials used 1 2 Validation 1 2 1 Standard Products e They are subjected to the standard tests carried out at Tichawa Vision No additional tests or verifications will be done 1 2 2 Modified Standard Products e They are subjected to the standard tests carried out at T
17. D shielding Assure that the LED illuminator or reflections from the illuminator cannot be viewed directly when the scanner is in its operating position 2 8 4 Thermal control Mount the scanner firmly on a plate that conducts heat away efficiently to maintain the enclosure temperature within the specified temperature range Page 16 of 16 3 Electrical Interfacing Before attempting to operate the CIS in an industrial setting all equipment should be interfaced and tested for compatibility and proper operation Testing should include operation ant the required production speeds using the desired synchronization methods and hardware 3 1 Warning CameraLink components may be severely damaged by electrostatic discharge Before connecting the sensor CameraLink port make sure that All equipment is disconnected from mains supply Sensor ground and data processing equipment ground are connected e Standard ESD protection is provided 3 2 Connectors cables and signals The CIS may have up to four types of external connectors for power CameraLink external illuminators and optional external rotary encoder These are illustrated in figure 3 24 VDC and pi Ext Light Ground E Control rotary b encoder Camera Link 1 Camera Link 2 Camera Link n Master Slave Slave 3 2 1 Power connector Type 03221 CIS 4 25 dpi CIS WARNING It is extremely important that only the correct voltages be applied to your scanner Incorrec
18. Y Tichawa Vision GmbH Industrial Contact Image Sensor User s Manual for all Versions English version prepared by Gordon Scherwinsky Page 1 of 1 CIS User s Manual Tichawa Vision GmbH DISCLAIMER Please note the following important points e The CIS is not intended for and may not be used for life support applications e CIS internal and external LED light sources should be treated as though they fall under Laser Class 3R e We reserve us the right to improve the product e With the documentation you will also get a datasheet of your CIS with specifications e Make sure that the cooling of the CIS is adequate You are able to cool the CIS over a chassis connection or a cooling system e Only connect the camera link cable when system is offline For safety reasons e Allow only trained persons to operate the light source e Operate the light source only with the protective window in place e Do not look directly into the light source For further details please refer to IEC 60285 1 Safety of Laser Products Page 2 of 2 CIS User s Manual 1 2 Tichawa Vision GmbH Frequently Asked QuUeSTIONS ke 5 UN NEE 5 1 2 What is the difference between a CIS and a conventional line scan Camera 5 13 What are the advantages of a CIS compared to a conventional line scan camera 5 1 4 What are the advantages of a conventional line scan camera compared to a CIS 5 1 5 Wim can t I buy an indu
19. able 5 setup command list NOTE 1 Even values enable the flat field correction odd values disable the flat field correction The other commands should not be used since they are not meant for the use of the CIS Commands and diagnostic data which are not specified serve the producer for diagnostic use They are not documented and subject to change Page 22 of 22 Setting the Camera Up Step by step instructions to run the Camera Connect the power cable with the camera and the power supply Open your grabber program and the camera file for your camera Open your terminal software and check the following parameters COM PORT of your cameralink connection eg COM3 Baud rate 9600 baud no parity 1 start bit 8 data bits 2 stop bits Apply your test pattern on the camera keeping to the proper image distance e g 10 mm showed at the label of the camera Turn light on internal camera light or external light Grab an image e g left click on the read in symbol 3 7 Calibrating the Shading Correction Set camera up as stated above set the digital dark level to a value close to zero e g around 8 20 counts set the digital bright level to a value close to full scale e g 230 counts grab images with a white reference object such as a sheet of white paper clear old correction values using the ZO command modify operating conditions line rate exposure light level to achieve pixel values between 50 and 1
20. al line scan camera Simple to mount no big distance necessary Simple to adjust Constant picture angle over the total reading width No distortion by the lens Clearly sharper images 1 4 What are the advantages of a conventional line scan camera compared to a CIS better depth of field DOF lower weight 1 5 Why can t I buy an industrial CIS at the price of a scanner Better quality Higher line rate due to more complex electronics Bigger scanning distance 10 14 mm instead of 0 3 mm due to more complex lenses Robust built solid metal housing 1 6 How do I control the exposure of a CIS By an internal or external light source which is controlled by a timer inside the CIS 1 7 The sharper imaging of a CIS in contrast to a conventional camera may cause interferences if periodical patterns are inspected What can do The option multiple flashing surpresses interferences as far as possible 1 8 What distance between object and sensor working distance is possible The modular CIS allows a working distance of 10 mm up to 30 mm 25 dpi 1 9 What is the depth of field of a CIS As arule 0 1 16 mm depending on the application focal length and light wave length 25 dpi 16 mm 200 dpi 2 mm 400 dpi 1 mm 600 dpi 0 5 mm 1200 dpi 0 43 mm different lense 1 10 Which is the local resolution of a CIS TiVi offers CIS units of 25 dpi 1 016 mm pixel grid up to 2400 dpi 10 5 um pixel gr
21. aper where buildup of very high electrostatic charges routinely occurs Be sure the CIS is grounded using short copper braid lt 500 mm before starting the material transport Page 25 of 25 4 2 Protecting Against Dust Oil and Scratches The CIS window is part of the optical path and should be handled like other optical components with extreme care Dust can obscure one or more pixels producing dark patches on the sensor response Dust is most visible when the illumination is collimated or when the focus is set near the surface of the glass The dark patches from dust on the glass will shift position as the angle of illumination changes Dust is normally not visible with diffuse illumination if the focus is far from the window Dust can normally be removed by blowing the window surface using an oil free compressed air blower unless the dust particles are being held by an electrostatic charge in which case either an ionized air blower or wet cleaning is necessary Oil is usually introduced during handling Touching the surface of the window barehanded will leave oily residues Using rubber fingercots and rubber gloves can prevent oil contamination However the friction between the rubber and the window may produce electrostatic charge that may damage the sensor To avoid ESD damage and to avoid introducing oily residues ground the CIS enclosure when cleaning the window Scratches on the window can be caused by improper handling cleaning or
22. as A r only Page 21 of 21 Clear restore correction data Z value lt CR gt value 0 value 1 value 2 Clear correction data but do not clear RPLC flags Load correction data from Flash Clear correction data and RPLC flags Store correction data lt CR gt None Stores current correction data in non volatile memory Show statistics s lt CR gt None Displays current sensor statistics e g maxmimum Pixel resolution Mode Set Cycles Q value lt CR gt value 1 255 Number of lines used for offset and pixelcorrection Autoset offset I startCH stopCH lt CR gt Channel 0 xx Automated Offsetcalibration from startchannel to stopchannel Set analog Gain G channel value lt CR gt value 0 63 255 all channels Set analog Offset O channel value lt CR gt oe nal 255 all channels Cole Displays pixel Pixelstatistics p col pixel lt CR gt Pixel minimum and maxium value Table 4 Image data command list 3 6 Setup commands The commands in table 6 assist in setting up systems using the CIS 4 Value see note Command Syntax 1 Effect mode 0 1 Displays live video mode 2 3 Displays constant zero mode 4 5 Displays constant 80h So aeonone wimege s One mode 6 7 Displays sawtooth test pattern mode 8 9 Displays 2D test pattern Reboot l lt CR gt None Reboots the CIS CPU T
23. ations of length speed and illumination arrangement combinations Certain characteristics are shared by these various models 2 1 1 Description The CIS is an innovative line scan camera generally built from end to end stackable linear sensor modules mounted on a rigid substrate The GRIN array optics in the CIS allow the distance from the object to the sensor to be very short producing constant unity magnification Illumination is provided by a linear array of LEDS focused by a continuous glass cylinder lens These elements are mounted with the control and processing electronics in a rigged metal case thus providing high sensitivity easy alignment and immunity to vibration The fully parallel construction of the CIS provides unparalleled speed and resolution With its inherent parallel structure the line rate spatial resolution and sensitivity of the CIS are constant for all scanner lengths 2 1 2 Scan geometry e Contact 0 mm working distance This option is most suitable for textile materials including non wovens While a textile production environment typically is very dusty the textile material moving directly across the MiniCIS 4 window can keep the window clean e Non Contact 8 to 14 mm working distance This option is suitable for materials that may not come into close contact with the glass window because either the window Page 8 of 8 itself e g with sheet metal or the material under test e g paper might be damaged or
24. cused Because the operation of GRIN lenses is symmetric the magnification is always exactly 1 A single GRIN will make an image with a size defined by its acceptance cone To make extended images rows of rods are placed side by side so their cones overlap For continuous Page 15 0f 15 coverage two or more rows of grins in a hexagonal array are used For stability the rods are surrounded by glass plates and glued into place Figure 2 shows the construction Figure 2 GRIN lens construction FRP Side Plates gt lt Rod Lens Rod Lens gt T Silicon Resin 2 8 Cautions for installation Because the CIS operates close to the object under inspection certain precautions must be taken to minimize the chance for damage 2 8 1 Electrostatic discharge The CIS may be damaged by the high electrostatic charges generated by moving rubber plastic or similar materials Please make sure that the case is properly grounded using several short connections of sufficient diameter Keep connections between the CIS case and electronics ground as short as possible 1 meter or less Long ground lines in conjunction with high energy might damage the device 2 8 2 Window damage The CIS can be damaged by materials falling directly onto the window Please make sure that the CIS is not subject to impacts from parts falling onto the window or to stress by parts being pressed against the window or its frame by a transport system 2 8 3 LE
25. e software commands WARNING Do not exceed 100 kHz repetition rate with any CC1 signal Frequencies higher than 100 kHz can damage the scanner 3 2 1 5 Data bus CIS uses one or more Camera Link Base configuration connectors in the 8 bit mode Ports A and B are used for data transmission with each channel carrying one half of the scan data Do not use Port C It may contain test data that will corrupt the image files Page 19 of 19 3 2 1 6 Serial communication All software commands are sent via the internal Camera Link serial port The port should be set for the standard parameters 9600 Baud no handshake no parity 1 start bit 8 data bits 1 stop bit Control commands The serial interface uses a set of simple ASCII commands to configure and operate the CIS The following rules always apply to commands sent and received A carriage return lt CR gt ends each command The linefeed character is ignored All values are assumed to be in decimal The commands consist of a single character command and parameters The camera will answer each command with either lt Ready gt lt Error x Error Message gt or lt Unknown Command gt e The gt followed by a Carriage return lt CR gt are always the last characters returned by the camera e Values to be sent are shown as value Do not send the square bracket characters 3 3 Status commands On power up the CIS will execute its startup sequence by initializing all
26. es daylight or room light should be visible for the sensor at low line rates 6 4 Safety Matrix Features in brackets are projected yet Product MINICIS MIDICIS MAXICIS notes Problem Pinned supply unit Protective diode Protective diode Protective diode Over voltage OVLO OVLO Tw OVLO supply unit Transzorb Dioden Excess SW control SW control temperature T2 LEDs off LEDs off Excess Tempw chter Tempw chter temperature T3 Crash Watchdog Watchdog FPGA uncharged CPU reset CPU reset LED guard Kap Kopplung Kap Kopplung Amplified ESD Protective diode guard CL Acceleration Sensor Sensor Sensor visible Excess label label label visible temperature Caution Attachment 1 Configuration sheet of your CIS Page 33 of 33
27. ichawa Vision Modifications will be tested and documented in addition to the standard tests 1 2 3 Customer Specific Products e They are subjected to the standard tests carried out at Tichawa Vision An acceptance test procedure will also be carried out 1 3 Life Expectance and Long Term Availability 1 3 1 MTBF e The MTBF will not be calculated if it s no part of the contract Page 7 of 7 1 3 2 List of Single Source Components and supplier history e These documents will not be supplied if it s no part of the contract 1 3 3 Supply List e A supply list will not be provided if it s no part of the contract Specification of CIS The camera needs a power supply of 24V min 1A except when otherwise noted System requirements IBM compatible PC more than 256MB RAM more than 1GHz CPU mouse keyboard CameraLink Cable Powercable Software requirements Grabber Software Terminal Program like ProcommPlus or similar Warning Some combinations of Hardwdare Grabber and terminal program might be too slow to catch up with the data rate at the serial interface Ask your frame grabber vendor for details Connections The camera is connected to the grabber over the CameraLink Cable 2 Introduction to the Industrial Contact Image Sensor The CIS is intended for the monitoring and controlling of production lines in an industrial environment 2 1 General Characteristics The CIS is available in a wide variety of configur
28. id Page 5 of 5 1 11 Which local resolution do I need for my application There is no clear answer to this question as it very much depends on the algorithmics used General speaking the smallest object to be recognized should at least be the size of 2 5 pixels Typical questions of interpolation such as defining the centre of mass etc can be solved at a much finer grid than the pixel grid 1 12 Which line rate does my application require For most applications we recommend square pixels The line rate is the result of transport speed divided by pixel size For example The pixel size of a 200 dpi sensor is 127 um At a feed speed of 1 m sec the line rate required is 1m sec 0 000127 m 8000 Hz 8 kHz The sensor should be operated at a line rate of 8 KHz 1 13 What kind of illumination is best for my requirement One sided reflective light is sufficient for flat structures print Spacial structures crinkled materials require double sided reflective light in feeding direction in front and behind the sensor Transparent and printed materials often require transmissive light Special applications e g scanning of security papers often require a combination of reflective and transmissive light CIS supports multiplex operation with two light sources 1 14 Which colour of lighting is best for my application Red light is usually best for simple B W applications 1 15 What is PRNU like variation of pixel counts at
29. is a SUBD 5 pin 3 2 1 3 CameraLink interface The CIS uses high density 26 pin MDR26 connectors for CameraLink control signals data signals and serial communications The pinout and functions correspond to the requirements of the CameraLink specification Any standard CameraLink cable up to 10 meters may be used Page 18 of 18 3 2 1 4 Control signals Camera Link provides four camera control signals CC through CC4 that can be defined by the camera manufacturer When the CIS is in the triggered mode these signals are used for triggering and optionally for illumination exposure control In standard configuration exposure control is generated by the internal CPU according to the software commands Figure 5 shows the timing considerations Strobe Line Valid LED Light Figure 5 Trigger timing The rising edge of the CC1 signal initiates scan of a line and exposure time The wait time between lines should be taken between the end of the Line Valid signal and the initiation of the exposure The CIS allows use of up to four independent light sources and four partitions of the sensors Generally the sensors are partitioned only in RGB scanners In all other cases the CC1 signals control the exposure but the triggering is initiated only by CC1 Only CC1 is used in single color monochrome scanners When the CIS is not in the triggered mode all line initiation and exposure timing is generated by the internal CPU according to th
30. lectromagnetic compatibility EMC 2 2 Industrial CIS Models All CIS scanners are built up from linear image sensor dies typically 8 mm long These dies are mounted onto a substrate using COB chip on board technology for accurate and stable alignment and minimal inter die gaps with additional electronics to produce an imaging module The modules with an active length of approx 260 mm are rigidly connected and attached to a metal base to produce overall scanners with active lengths of up to 4160 mm 2 2 1 Resolution Table 1 2 shows the available configurations and the resulting pixel totals CIS 4 Active Total Pixel Count Modules Length 200 s mm dpi 300 dpi 400 dpi 600 dpi 2 520 4096 6144 8192 12288 4 1040 8192 12288 16384 24576 Page 9 of 9 CIS 25 dpi 6 1560 12288 18423 24576 36864 8 2080 16384 24576 32768 49152 10 2600 20480 30720 40960 61440 12 3120 24576 36864 49152 73728 14 3640 28672 43008 57344 86016 Table 1 Pixel Count vs Scanner length Active Total Pixel Modules Length Count mm 25 dpi 1 520 512 2 1040 1024 3 1560 1536 4 2080 2048 5 2600 2560 6 3120 3072 7 3640 3584 8 4160 4069 2 3 MiniClS 4 Models All MiniCIS 4 scanners are built up from linear image sensor dies approximately 8 mm long These dies are mounted directly on a substrate chip on board technology for accura
31. rator printout 5 3 Short introduce for Camexpert Dalsa Grabber Software and Camera File 6 Troubleshooting If the CIS does not seem to be operating correctly please try the steps listed in this section Unless something is damaged one of these should correct the problem 6 1 Simple problems Are the Camera Link connections all in place Is the computer running with the proper software and setup files Is the power supply connected and turned on Is the CIS in free running mode If not is a trigger provided 6 2 Troubleshooting using the serial interface The following commands can aid in debugging The complete command protocol is described in section 3 Page 32 of 32 To quickly verify serial communications send the command The CIS returns a list of all available commands To verify the camera setup send the command The CIS returns a list of current settings Use the test pattern V feature to verify the proper timing and connections between the camera and the frame grabber and verify the proper output along the digital processing chain 6 3 Optical tests If you suspect that the CIS is sending data but that the image amplitude is too low turn off the corrections Z0 and try the following For reflective applications check if there is a reflective target that can be seen by the sensor For transmissive applications check if there is a path where light can pass from the source to the sensor In both cas
32. real pixels 2496 Exit Connect Camera Terminal CameraT emp 33 ies Camera connected Page 28 of 28 Figure 3 sensor info Ze TiViCISIF VO 34 Camera Software Version WG y MINICIS4 1 60 Tichawa Vision GmbH Status Options Sensor Info Parameter Commands analog digital Dark Level fio fio Mode jo Bright Level 230 230 Cycles fio Exposure 200 Frequency 2100 Gain Factor 2 ive Permane Refresh Exit Terminal CameraT emp EI IS Camera connected Figure 4 Parameter TIVICISIF VO 34 Command j C nd Camera Software Version Z Se meee Tichawa Vision GmbH Status Options Sensor Info Parameter Commands 1 4 1 3 A en Camera Response General y Hat Feld Correction Unknown Command Unknown Command Light Orvott i Erase Pixel Comection Permanent parameters Reset Camera P Hode Dark level analog digital Bright level analog digital Cycles Gain Factor Line Frequency ExpoTime 6 ExpoTime 1 Exit Connect Camera Terminal CameraT emp ES E Camera connected Figure 5 Commands and Terminal 5 2 Tichawa Vision CIS configurator Page 29 of 29 5 2 1 Install Configurator It gives 2 options to install the UI a b execute setup exe and follow the instructions of the menu unpack the ClSKonfigurator zip in one folder 5 2 2 Handling of the Configurator a b c d e f 9 h k
33. s and Choice of Materials unn 7 1 1 1 Software Standards and Test Methode kk 7 1 1 2 Firmware Standards and Test Methods e 7 1 1 3 Choice of Materials AAA 7 k2 e E EE 7 1 21 Standard POU GS eene 7 1 2 2 Modified Standard Products E 7 1 2 3 Customer Specifi tee TEE 7 1 3 Life Expectance and Long Term Availability nnneneeeseeeneneneneesserrnrrssererrnrnnnnssseresrennne 7 ioi MIBE eana ee ce ee ere eee rere ee een ner ee er cer ee eee eee ee 7 1 3 2 List of Single Source Components and supplier betonm teen 8 33r SUPPI EE 8 Introduction to the Industrial Contact Image SenSor sssssssneesessenrrrreesseerrrrnnrrsseerreeennne 8 2 1 General Characteristics cccccccccccccccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeseeeseneeeneeeegs 8 CEA WEN vd EE 8 2 1 2 EEN 8 E GE 9 21 4 RGB MOUS E 9 2 15 SOUWArS COMING eege eeneg 9 2 1 6 PSQulatOry COMPING Bic cctes cccsticss cceseacscoestaay eege Eege eg 9 2 2 Industrial CIS Models ccc cccccccccccccceeceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeseseneseneeeeeeeegs 9 22 RESONON cacetect cenieal cacti memtentueg i a a a 9 23 MiNiCIS4 EE 10 2 3 1 Resolution and Sensorhead possibilities Ak 10 24 MidiCIS le EE 11 2 4 1 cross section Be ECHT EE 12 25 M du lar C S EE 12 Page 3 of 3 2 5 1 cross section of a modular CIE 13 22 Power C ns mMptlo EE 13 2 5 3 Operating requirements s c e cenceis sceetdeae teed vdecees DESEN DANCE SEENEN 13 2 6
34. strial CIS at the price of a scanner ccccccceeeteeeeeeeeeeeeeeeeees 5 1 6 How do I control the exposure of a CIS ssssssssssensessssereerrnrressrrrrtrrnntrssertrrrrnnnnsserrrnrnn net 5 e 7 The sharper imaging of a CIS in contrast to a conventional camera may cause nterferences if periodical patterns are inspected What Can do 5 d 8 What distance between object and sensor working distance is possible 5 1 9 What is the depth of field Of a CIS ooo ENEE 5 1 10 Which is the local resolution Of a Cl 5 1 11 Which local resolution do need for my application cccceeeeceeeeeeteeeeeeeeeeeeeeteaeees 6 1 12 Which line rate does my application require eee cceeeeeeeee eee eeeeeeeeeeeeeeeeeeeeeeeeaaees 6 1 13 What kind of illumination is best for my reguirement 6 1 14 Which colour of lighting is best for my application 6 1 15 What is PRNU like variation of pixel counts at constant lighting in comparison between a CIS and a conventional line SCAN camera ec cette eee eeeeeeeeteeeeeeeeeeeteeetneeeeeeeees 6 1 16 At which Bit does a CIS operate ENEE 6 1 17 Is there a difference in focus of an image taken by a CIS compared to a conventional linescancamera E 6 1 18 What is the spectral sensitivity Of a CIS ke 6 1 19 Is it possible to build a sensor without oaps eeeeeeeaeeeeeeeeeeteeeeaaees 6 1 20 What do I have to take care of when install a CIE 7 1 21 Design Rule
35. t or reversed voltages will damage the scanner The power connector is located on the end of the scanner corresponding to the last pixel read out The pinout is shown in Table 3 and the connector is shown in Figure 4 H 5 Signal 24V 24V Reserved Reserved Return gnd Return gnd Table 3 Power connector pinout Figure 4 Power O O1 amp O Po The pin configuration is MIL C 5015 14S 6 The mating connector for the power connector is an Amphenol type GTx06yyy 14S where y indicates the type of wire connection required and yyy indicates the type of cable strain relief required See the Amphenol GT series catalog 12 024 for details and drawings Page 17 of 17 3 2 1 1 Power connector Type 00091 MiniCIS 4 Pin Signal Cable color 1 24V white 2 24V 3 Prog yellow Figure 5 Power 4 DC green 5 Return gnd brown The power consumption has a maximum of 6 Return gnd 1 5 A and the regulation of the DC voltage supply should be 1 V The mating connector for the power connector is a hirose 6 pin Table 4 Power connector pinout 3 2 1 2 Power connector Type 03974 modular CIS MIDICIS Pin Signal Cable A1 24V 1 A2 24V LED 2 A3 shield yellow A4 Return gnd LED 3 Figure 6 Power A5 Return gnd 4 PIN A1 is the right PIN Table 5 Power connector pinout The mating connector for the power connector
36. te and stable alignment and minimal inter die gaps with additional electronics to produce an imaging module The MINICIS4 modules have an active length of 57 mm minimum to 307 mm maximum Table 2 Pixel Count vs Scanner length e Hat Line Scan Camera e Scan width 57 89 104 216 or 307 mm e Line rates up to 12 KHz e 100 200 300 400 or 600 dpi corresponding to approx 4 8 12 16 or 24 dots per mm e up to 5376 Pixels e Optional Shading Correction e Camera Link Interface e Built in Light Source A Optics e Interface Cable for Multinead Version has a length up to 5 Mtr 2 3 1 Resolution and Sensorhead possibilities Table 1 shows the available configurations and the resulting pixel totals Table 2 shows the available configurations of possible sensorheads length and line frequency Active Total Pixel Count Modules Length e m 200 dpi 400 dpi 600 dpi 1 89 704 1408 S Page 10 of 10 1 104 832 1664 2496 1 216 1728 3456 5376 1 307 2432 Table 1 Pixel Count vs Scanner length Resolution Taps LF 307 LF 216 LF 104 LF 89 LF 57mm Max Sensor mm mm mm mm possible Sensorheads 200 dpi 1 2 kHz 2 8 kHz 6 kHz 7 1 kHz 8 4 11 2kHz 2 300 dpi 1 1 9 kHz 4 kHz 3 8 kHz 8 2 3 9 kHz 4 400 dpi 1 1 4 kHz 3 kHz 3 5kHz 5 5kHz 8 2 6 kHz 4 4 5 6 kHz 2 600 dpi 1 2 kHz 2 kHz 3
37. ute setup exe and follow the instructions of the menu b unpack the TIVICISIF zip in one folder 5 1 2 Handling of the User interface a execute TIVICISIF exe b go to the menu options 1 figure 1 Page 26 of 26 c now are 2 options available I serial communication over an COM port 2 figure 2 IL serial communication over the grabber dll file 3 figure 2 d the fastest way will be to use the grabber dll because its not nessasary to configure an COM port with the Grabber Software A couple fo grabbers don t have this possibility e after you chose the communication type connect the camera 4 figure 2 f if the communication was right the software will show camera connected 5 figure 2 and open more menus If you go back to the status menu the red parts will be green now 7 figure 2 figure 1 g otherwise the COM Port or Grabber dll which you choose is wrong h To check the hardware parameters of the CIS go to the menu sensor info 6 figure 2 i Inthe Sensor Info you are able to see the sensor specifications 8 and the Camera Software Version 9 figure 3 This menu is only for your information and could help to write an camera file j After you checked this information you can go to the parameter menu 10 figure 3 k Inthe parameter menu it s possible to set the basic parameters of the CIS Le for shading correction 11 figure 4 This parameters are explained in 3 3 of the documentation
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