RASCAN-5/4000 (7000)
Contents
1. OPERATION 15 e Step on OX axis e Step on OY axis e Starting position If it is planning that position of the first scan line will not correspond to zero on a ruler for vertical marking here you should specify this nonzero value By clicking Start button the new window will appear Each small blue rectangle is correspond to the one pixel of the future image ET jj lox Frequency 1 6 400 GHz Process I quadrature Q quadrature Place the head of the device onto the top left corner relative to operator of scan area Press and release Start line button on the head and slide the head smoothly along current scan line When end of line is reached a beep comes and the resulting line is appeared in the image Relocate the head to the beginning of the next line one step from the previous Press Start line and repeat the same routine Motion should be smooth and straight and not too fast single line should be scanned for no less than 1 1 5 seconds Use ruler or mark out surface in advance to keep lines parallel and properly Spaced You can check the number of current line in Current line at section of the Device window When scanning uneven surfaces use thin 2 3 mm plexiglass sheet If you don t want to scan all planned lines you can finish the scanning by clicking Stop button In this case the image height will be equal to the height of the actually scanned area Operator could make mistakes w2. button on wanted pixel of the image At that it is convenient to increase the size of the image If you want to edit the pixel click exactly this pixel If you want to edit row or column you may click any pixel of this row or column After clicking the window will be opened where you can choose the subject of editing and action Edit pixel What to do f Take left right average Take all average As new value of the pixel you can choose 1995 2015 RSLab DEVICE OPERATION 19 e Mean value of neighbor on the left and on the right e Mean value of neighbor on the top and on the bottom e Mean value of all neighbors Edit row Ce Take top bottom average Shift left Shift right When editing the row you have the following possibilities e Set new value of each pixel of the row as mean value of neighbor on the top and on the bottom e Shift the row one pixel left e Shift the row one pixel left Last two possibilities is usually used to correct the effect of wrong initial position of the head during scanning Edit column When editing the row you have only possibility to set new value of each pixel of the column as mean value of neighbor on the left and on the 1995 2015 RSLab RASCAN 5 4000 7000 right 3 3 2 Cropping You can crop an image to remove unwanted areas Cropping allows you to select a rectangular area that you want to keep and discard the rest To crop an image 1
3. file extension as default to identify the data files 1995 2015 RSLab SOFTWARE g 2 3 User Interface RASCAN Q has a multiple document interface whose windows reside under a Single parent window RASCAN Q O x File Edit View Image Device Window Sat Help 8 D h 40 7GHz RASCAN word in concrete dbi E Mi x 7GHz RASCAN word in concrete_resalg m x Process Frequency 3 6 600 GHz Depth zam 2 X 112 555mm Y 57 280mm Wii 130 egen 2 3 1 Command List The menu commands are listed in the table Some items are correspond to the toolbar icons Scan Acquire a new image see topic Scanning Ctrl N Open Open an existing image data file Ctri O 1995 2015 RSLab RASCAN 5 4000 7000 Command Po Description S Save Lets you save the image from the active window bod cts Li as Lets you save the image fromthe active window under a new name The image may also be saved to many different file formats see topic Exporting Images to Other File Formats Exit Lets you exit the program Ctri X Lets you copy the image from active window to the clipboard using bitmap format After that this image can be used by any Window s program see topic Image window Le Lets you crop the image see topic Cropping Zoom In Lets you increase the scale of the image by 25 percent You can Ctri also use the mouse w heel Zoom Out Lets you decrease the
4. filename in the File name list box 9 Click Save 1995 2015 RSLab
5. included in the RASCAN 5 package 1 1 General Overview RASCAN 5 is a lightweight portable holographic radar system intended for sounding structural components of buildings brickwork wall panels cast in place concrete and reinforced concrete etc for detection of buried objects wiring reinforcement voids various kinds of discontinuities and foreign bodies Software forms representation of the internal structure of examination area RASCAN 5 produces plan view gray scale images of the subsurface objects using five simultaneous frequencies The images can be focused by special algorithms for improving their resolution 1995 2015 RSLab ABOUT DEVICE 3 1 2 Technical Info Rascan 5 4000 Rascan 5 7000 medium properties mm Resolution in plane of sounding at shallow depths cm Number of frequencies Te Dimensions mm S Weights kg Productivity m per hour Transmitter power mW Note Maximum sounding depth is given for homogeneous and dry materials Moisture and heterogeneity in the medium cause the decreasing of the penetration ability 1995 2015 RSLab RASCAN 5 4000 7000 Operating conditions e Temperature C 10 35 e Relative humidity lt 90 1 3 Safety Precautions Being an electronic device RASCAN 5 has to be treated with the caution and care necessary when such devices are used Any failure to observe the safety precautions given or any use for purposes other than the
6. ones it is conceived for may result in a damage or destruction of the processing unit and connected components If used properly the device normally does not pose any health hazards According to the All Union state standard 12 1 006 84 i 2 4 the high frequency signals are not harmful to the human body on account of their low power 1 4 Packing List Ji Control unit Straight sounding head cap ships mounted 1995 2015 RSLab EE Ne RASCAN 5 n d e testing dev ABOUT DEVICE ER Cable for connecting head to control unit Cable for connecting control unit to PC Power supply unit Mating part for external 12 VDC power supply socket connect internal electrode to the positive terminal of the power source D E Tet Sa SE Se Package 1995 2015 RSLab RASCAN 5 4000 7000 oA l a 1 5 Controls and Connectors Start line button Marching wheel Control unit connector Power on switch Power on LED Reset button Sounding head connector RASCAN 5 KI n 6 PC connector GO N OO oa A W N Power supply connector LM Non destructive testing device 1 6 Hardware Connections Only three simple connections need to be made before you can start the system 1 Connect head to control unit via cable with RJ45 connectors on both ends 2 Connect control unit to the PC via USB cable 3 The male end of the DC power cabl
7. signal oscillations are absent acquiring clear images is doubtful Alternatively by moving the radar head within the area of interest observable oscillations in test mode provide information on present anomalies in the material The receiver of the device includes an amplifier with programmable gain factor possible values are 1 2 4 8 16 32 64 128 It is possible to set individual gain factor for each frequency Gain factor is programmed through Gain 1995 2015 RSLab RASCAN 5 4000 7000 factor control in the bottom left corner When you switch the frequencies the current gain factor for each frequency is displayed After choosing the new appropriate value you should store the new gain factor by pressing button Set If the test is started the gain factor is set only for active frequency If the test is stopped the equal gain factor is set for all frequencies By default the device has optimal gain factor You can be faced with the need to change the gain factor very seldom in case of off scale reading 3 3 Images Editing 3 3 1 Correcting Action Sometimes acquired images contain some defects They could be caused by operator actions or very rarely by electromagnetic interference If the defects were not corrected during scanning by Replace line procedure you can correct them at any time It is possible to correct one pixel whole row or whole column Correction procedure is started by double clicking left
8. Choose Image gt Crop or click icon LL in the Toolbar 2 Drag to select an area on the image 3 Press ENTER button on the keyboard 7GHz fantail wires dbi Initial image with selected area 1995 2015 RSLab DEVICE OPERATION 21 The image after cropping 3 4 Image Focusing The image immediately registered by the radar is not exactly an image that describes actual distribution of reflectors in the space behind the sounding plane What radar registers is an interference pattern created by these reflectors that is also called a hologram For a distant object its interference pattern has a form of ripples due to diffraction The diffraction effects being stronger for a more distant object than for a closer one may prevent a concealed object from identification 1995 2015 RSLab RASCAN 5 4000 7000 7GHz RASCAN word in concrete dbi Frequency 3 6 600 GHz Raw image To compensate for diffraction effects RASCAN Q software provides a focusing procedure that can be relied on when sounding relatively homogeneous media Click Process button in any window with an acquired image to display the following dialog with processing parameters F Process Settings Range section has three input fields with the titles From To and Step The first two parameters define an interval of focusing depths The third parameter defines the step between adjacent planes of focusing It is also required to define diel
9. RASCAN 5 4000 7000 DEVICE FOR SOUNDING OF BUILDING STRUCTURES AND WORKS USER S MANUAL NG L Ae o S A N Q RSEab 1995 2015 RSLab TABLE OF CONTENTS NE TABLE OF CONTENTS Chapter 1 ABOUT DEVIGE S Sn Rs Aa 2 1 1 General Overview ccccccccecccsccessseeecsceesssseeessseeecesaeeeeseeeesseeeesesssesesseeeessaeeeesees 2 152 Rn e ele EE 3 E E e 4 E ee eg LIS inna ee an tene 4 1 5 Controls ue Re ole Eer e EE 6 1 6 Hardwa r Connection EE 6 Wan ee e Lag tele EE 7 Chapter 2 SOR RE 8 2 1 NYS GAMING RAS CAIN EE 8 22 F MG Types and EXENSIONS EE 8 2 9 OE al g 29 Fz ee 9 29 11 COMMANd IS bx a6 used en sn seu nn dde 9 PES PAR 2 LUE SA BaT aren ect en Rare eeiee cere ea areas 12 2 3 9 Image WINdOW ESS en un 12 Chapter 3 DEVICE OPERATION ccccccssecsseeceseeesseeeesseeseseesseeessseeseneessseeesseeesses 14 SEENEN deer 14 3 2 Device Festina nee nanas Aedes 16 Kl Eet EditNO anim an indien 18 d 9 1 COrT CINg ACION 2 343 We ES Sind eo Home tn Nr 18 so ets rant lee EE 20 94 Image FOCUSING BEE 21 SOs A00IIONAl POS e UE 25 OO 1 un Ee NINO SSSR nt ae ta a 25 3 92 E e ae 26 3 5 3 Exporting Images to Other File Formats c cccccssessseessteeesteeeenees 27 1995 2015 RSLab Chapter 1 ABOUT DEVICE Thank you for purchasing RAS CAN 5 holographic radar hereafter referred to as RASCAN 5 The RASCAN Q program and example files are stored on a single CD ROM disk
10. e actual depth of the object 7GHz RASCAN word in concrete_resul m E Frequency 3 6 600 GHz Image focused at true depth If the area of interest has several concealed objects at different depths the focusing may reveal several depths in a sequence where these objects become focused Stacked concealed objects present a difficulty to the radar due to the fact that closer objects always shield the deep The result of focusing in such a situation prone to errors and depends on many factors that can not be taken into account The result of focusing can be saved as a standard image of a table of values For further information on that please see topic Exporting Images to Other File Formats 1995 2015 RSLab DEV ICE OPERATION 25 3 5 Additional Possibilities 3 5 1 Image Info To view full information about image choose Image gt lInfo or click icon in the Toolbar D Image info x Date created 20 08 2012 I quadrature Q quadrature 1 6 400 Step on OX axis 5 mm 13513 33372 19859 21066 48525 27459 6 500 19968 43401 24413 9910 38288 28378 Step on OY axis 5mm H B 6 600 23713 59033 35320 19290 49592 30302 Width x Height 130 x 90 px 6 700 20590 46819 26229 27082 57308 30226 eee 6 800 17554 38546 20992 21420 44704 23284 RASCAN word cut from aluminium foil ae ze In Image info window you can view image properties suc
11. e should be connected to the power supply connector on the control unit 1995 2015 RSLab ABOUT DEVICE 7 NOTE Alternatively control unit can use external 12 VDC power source find mating connector in the package CAUTION Internal electrode should be connected to the positive terminal of the power source After all other connections have been made connect the power cable to the power source 1 7 Transport amp Storage Convey by any transport in original packaging in following conditions e Temperature C 10 50 e Atmospheric pressure atm AR En k2 e Relative humidity lt 90 e Shock g 10 Keep in dry hot storage 1995 2015 RSLab 38 RASCAN 5 4000 7000 Chapter 2 SOFTWARE RASCAN 5 is shiped with RASCAN Q program intended for e operation of the device e receiving the images in the surface of survey for detection and identification of hidden objects Scanning e processing of the received images RASCAN Q can be run on Windows XP Vista Seven 2 1 Installing RASCAN Q Insert the RASCAN Q CD into your computers CD drive the control unit should be turned off and disconnected Install USB driver from FTDI folder of the CD Restart the computer Connect the control unit to the PC and turn it on Run with Administrator rights Setup exe from the CD and follow on screen instructions O1 BR bh 2 2 File Types and Extensions RASCAN Q assigns dbi
12. ectric permittivity of the medium according to the reference table given below The discrepancy between the permittivity value given as parameter and the actual one leads to a greater error in the focusing depth but 1995 2015 RSLab DEVICE OPERATION 23 not visually alter the result of focusing ea e Constant Constant Asphalt Dry Granite Dry Concrete Dry Limestone 1 Wet Granite Wet Limestone e Wet Concrete Button Select Background allows the user to designate specific area on the image to be taken as the background If the background is not selected manually the average intensity of image is taken which is appropriate in many cases A rectangular background area is chosen by performing the following sequence on an image left mouse button press and hold gt drag gt left mouse button release after pressing button Select Background The focusing starts at clicking Start button with displaying the result of focusing to a minimum depth of the depth focusing interval Image focused at wrong depth 1995 2015 RSLab RASCAN 5 4000 7000 The depth of focusing can be interactively changed in edit field Depth The desirable result of focusing procedure is to find a depth with the sharpest image This image is best suited to identify the object of interest as compared to raw images It should be noted that obtained estimation of depth has errors defined by inaccuracy of dielectric constant value and may not reflect th
13. ero position by moving the mouse while left button is pressed 3 5 3 Exporting Images to Other File Formats You can export RASCAN 5 images to a variety of file formats The file format you choose depends on how you want to use the image in the future For example if you want to work on an image in another image editing application or to insert it into your report you can export it to the graphical file format png jpg tif bmp These formats are suitable because they are standard formats images in these formats can be opened in most image viewers and most image editing and desktop publishing applications If you 1995 2015 RSLab RASCAN 5 4000 7000 want to process an image with MathCAD MATLAB and so on you can export it to the csv format Also you can easily open CSV file by Microsoft Excel Each RASCAN 5 data file stores real and imaginary parts of signals registered on all operating frequencies For five frequencies data file contains ten images Being exported each image is saved to an individual file For example if original file wires dbi save to JPG format there will be ten files of wires X_YY jpg sort where X means real or imaginary part of the signal 1 real part 2 imaginary part and YY is frequency number To export an image to another file format 1 Choose File gt Save As 2 Choose a file format from the Save as type list box 3 Choose the folder where you want to save the file 4 Type a
14. h as date of creation could be changed steps on OX and OY axes for research purpose could be changed and image dimensions in pixels Below you can see or fill out the Description box In the right part of the window you can see the table where for each frequency the minimal and maximal values of the signal and difference between maximum and minimum in brackets are appeared You can estimate which frequency is optimal for this experiment 1995 2015 RSLab RASCAN 5 4000 7000 3 5 2 Graphic For more detailed image analysis RASCAN Q can plot a relation between image brightness and longitudinal or transversal coordinate hereafter referred to as Graphis Choose View gt Graphic or click icon in the Toolbar to see Graphis window Distance om Initially you see graphic along the first row of the image Use arrows in the top left corner to choose another rows Current line is marked on the image by red color 1995 2015 RSLab DEVICE OPERATION 27 If you change the frequency by frequency switch the graphic is redrawn the same is for depth switch if graphic is plotted for the results of processing If you want to see dependance along column click icon For returning back to the row click If Autoscale check box is in checked state the Y axis limits are automatically changed according the values of the signal In unchecked state you can change the limits by mouse wheel Also you can change the z
15. he device calibration is required as it is in the case of scanning see topic Scanning Also you can calibrate the device by pressing Calibrate button in the bottom left corner of the window Test 1995 2015 RSLab DEVICE OPERATION 17 I quadrature quadrature for current frequency Calibration 00 39 00 40 00 41 00 42 00 43 Time sec 50 samples per second To start the test click in the top left corner to stop the test click The same window has graphic symbols depicting the states of the Start Line Button and the Marching Wheel The amplitudes of registered signal quadratures are shown in the center of the window as a Strip chart One can choose the displayed frequency by using the spinner at the top right corner of the window The value in spinner Delay defines the sampling interval of incoming data The default value of the sampling interval is not required to be modified in most cases The testing is performed to check connections of the device and its operation This mode can also be used to estimate penetration capability into material at hand For example one may place the sensor head on a sample pointing into it and wave his hand on the opposite side to check if there are visible oscillations of the signal Oscillations with high amplitude evidence good penetration into the medium and leave good chances of acquiring images with visible subsurface objects at scanning When
16. hile scanning For example he could press the head to the surface too strongly or too faintly move the head too fast or make a mistake with initial position of the head So in RASCAN Q it is possible to replace last scan line For replacing click Replace last line 1995 2015 RSLab RASCAN 5 4000 7000 button in Replace line section When scanning is finished it is possible to replace any line in the image To do this you should move the mouse pointer to the line you want to replace and look at its number in the Status bar Then you have to specify this number in Replace line section click Replace line button move the head to the replaced line and do the scan By clicking Finish button you confirm that current image is complete After that you can t replace lines Data displayed on the computer screen will be lost when RASCAN Q is closed To permanently save your data you must click File gt Save locate the folder in which you want to save the file type a filename in the File name list box and click Save button You can add short text with experimental conditions or something else to the data file Choose Image gt lInfo or icon in the Toolbar and write down the text in the Description box Then click Save button 3 2 Device Testing Rascan Q provides an optional routine to test the radar To enter the test mode open the window Test by choosing File gt Scanning or by clicking icon amp in the Toolbar Before testing t
17. ibrary 1995 2015 RSLab RASCAN 5 4000 7000 2 3 2 Status Bar In the bottom of the main window you can see the Status bar D 78 385 mm 56 275 mm A 25567 Min 13513 Max 33372 Iwidth 130 Height 90 E While you move mouse over image window the Status bar shows the following information e mouse pointer coordinates X and Y in pixels and in millimeters in brackets e intensity A of the signal in current point of the image ADC values e minimal and maximal values of the image intensity e width and height of the image in pixels 2 3 3 Image Window RASCAN Q main window can contain any number of child windows with images acquired by RASCAN 5 radar 7GHz fantail wires dbi Each image window is divided into two parts left side shows the real part of the registered signal l quadrature and right one shows the image part Q quadrature Left clicking on the image sets the image to active state font of the title of the active image become bold While clicking Edit gt Copy just 1995 2015 RSLab SOFTWARE 13 the active image goes to the Clipboard Also for copying the image you can click on it with right button and choosing Copy from context menu There is a frequency switch in the top left corner of the image window You can choose any frequency from multifrequency image The switch displays number of the frequency and its value By clicking Process button top right corner the image pr
18. ocessing procedure is started see topic Image focusing 1995 2015 RSLab RASCAN 5 4000 7000 Chapter 3 DEVICE OPERATION ATTENTION After turning on the device please give it about 5 minutes for warm up 3 1 Scanning For scanning run RASCAN Q program and choose File gt Scan or click icon A in the Toolbar You will see a Device window Device Rascan 5 7000 Settings Image width Lon gon Image height 50 0 cm step on OX axis osm stop Step on OY axis Jo 5am gt Starting position 0 0 cm Width x Height 100 x 100 px Replace last line Test Calibration Ready E H the device isn t connected to the computer or switched off you will see Waiting for connection text in the bottom of the window After switching on the device the text will be changed to Ready If the device is connected to the computer or switched on the text will be Ready at once Different materials have different reflective properties Therefore you have to calibrate the device before work on each specific site For calibration you should press the device head to any place on scanning surface Supposedly without subsurface objects and click Calibration button Calibration will take a split second The following few parameters should be checked to ensure that they are optimal for your specific site e Image width in centimeters e Image height in centimeters 1995 2015 RSLab DEVICE
19. scale of the image by 25 percent You can Ctri also use the mouse w heel Normal size SE you display the image w ith original size zoom factor equals Ctrl D Fit to Lets you choose will or not the image be adjusted to the w indow Window w hile this size is changed by mouse Lets you see information about active image see topic Image Info Lets you see image intensity distribution along any row or column see topic Graphic Device menu Ras can Lets you choose 4 GHZ device if you have it 5 4000 Ras can Lets you choose 7 GHZ device if you have it 5 7000 Ras can Lets you choose 15 GHz device if you have it 5 15000 1995 2015 RSLab SOFTWARE Window menu Close Lets you close current window L 4 Close All Lets you close all windows Tile Lets you see window s side by side Cascade Lets you see window s stacked when the windows stack on top of each other and each window is shifted down just enough so you can see the name at the top of the window Next Lets you move the focus to the next window Previous Lets you move the focus to the previous window 3bik menu Pycckun Lets you choose Russian for program interface restart is required Engish Lets you choose English for program interface restart is required mie Lets you see RASCAN Q help system About Lets you see information about RASCAN Q program About Qt Lets you see information about Qt l
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