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Fairchild CAM CCD-2KLV.TDI manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    PRELIMINARY Camera User’s Manual OSPREY CAMERA SERIES CAM/CCD-2KLV.TDI CAM/CCD-4KLV.TDI ULTRA-HIGH PERFORMANCE Line Scan Camera[...]

  • Page 2

    PRELIMINARY FAIRCHILD IMAGING OSPREY CAMERA SERIES USER’S MANUAL CAM/CCD-2KLV.TDI a nd CAM/CCD-4KLV.TDI Rev 073004 © 2004 Fairchild Imaging, Inc. Fairchild Imaging, Inc. 1801 McCarthy Blvd. Milpitas CA 95035 1-800-325-6975 www.fairchildimaging.com PRELIMINARY DOCUMENT The information in this manual is preliminary. All information provided in thi[...]

  • Page 3

    PRELIMINARY Table of Contents SECTION 1 Introduction to the CAM/CCD-2KLV.TDI and CAM/CCD-4KLV.TDI High Performance TDI Line Scan Camera ...................................................................... 5 1.1 Camera Highlights ....................................................................................................... 5 1.2 Camera Sp[...]

  • Page 4

    PRELIMINARY SECTION 5 Handling Instructions ....................................................................................................... 31 5.1 Electrostatic Discharge ................................................................................................ 31 5.2 Preventing ESD Damage .............................................[...]

  • Page 5

    PRELIMINARY SECTION 1 Introduction to the CAM/CCD-2KLV.TDI and CAM/CCD-4KLV.TDI High Performance TDI Line Scan Camera 1.1 Camera Highlights Description The Osprey TDI camera series is an ultra-sensitive camera design for use in line scan applications that demand high performance under low light conditions. This se ries of cameras is based upon Fair[...]

  • Page 6

    PRELIMINARY Programmability Simple menu-based configuration for selection of gain, offset operational control, and diagnostics. • LVDS camera-PC communications with Fairchild-supplied user GUI. Usability Programmable gain, offsets, and controls. • Easy integration “plug compatabile” LVDS hookup Full Spectrum of Applications • Precision ma[...]

  • Page 7

    PRELIMINARY Notes: DN = Digital Numbers, also known as “levels” (0 – 255 for 8-bit systems, 0 – 4095 for 12-bit systems). All measurements taken with camera operating in 96 stage mode. All measurements exclude the last pixel of OS 1 and the first pixel of OS4. Tested using volpi (18111.001) linght line source, default camera gain. 1. Measur[...]

  • Page 8

    PRELIMINARY 1.4 Block Diagram CCD525 2048 x 96 stages Fairchild Imaging • CAM/CCD-2KLV.TDI & CAM/CCD-4KLV.TDI Li ne Scan Camera User’s Manual • Rev 073004 • 8 of 38[...]

  • Page 9

    PRELIMINARY 1.5 Block Diagram CCD545 4096 x 96 stages Fairchild Imaging • CAM/CCD-2KLV.TDI & CAM/CCD-4KLV.TDI Li ne Scan Camera User’s Manual • Rev 073004 • 9 of 38[...]

  • Page 10

    PRELIMINARY 1.6 Block Diagram 2K & 4K TDI Camera F a irc h ild C A M -4 k T D I .p p t 4 F a ir c h ild Im a g in g DC BI AS SU P P. GEN’ L PW R SU P P. I / O Buf f er s 25. 0M H z Hi Sp e e d Cl oc k Dr i v e r s Ti m i ng & I / O Cont r ol Low Spee d Cl o c k Dr i ve r s CCD Se ns or Ana l og Buf f er s Vi de o Proc esso rs LVDS Buf f e[...]

  • Page 11

    PRELIMINARY 1.7 2K/4K TDI Camera Timing Diagram Note: Timing diagram not to scale 2K TDI LVDS Strobe period :40 nS LVAL set-up time :20 nS Line period (min.) :21.8 uS Blanking :0.8 uS ExSync min pulse width :120 ns 4K TDI LVDS Strobe period :40 nS LVAL set-up time :20 nS Line period (min.) :43.1 uS Blanking :2.15 uS ExSync min pulse width :120 ns F[...]

  • Page 12

    PRELIMINARY 1.8 Thermal Considerations The Osprey camera series has been thermally designed to separate the camera electronics from the image sensor. The sensor temperature is thermally linked near the four M4 mounting holes on the face of the camera. Fairchild Imaging recommends mounting the camera using these holes to minimize sensor dark current[...]

  • Page 13

    PRELIMINARY SECTION 2 Camera Hardware Interface 2.1 Installation Overview Before you integrate your camera into your system you should first determine some basic operating parameters such as what resolution you need. Do you know the speed of the object that your camera will be inspecting? One additional point you want to keep in mind is your lighti[...]

  • Page 14

    PRELIMINARY 2.2 Connectors, Pinouts, and Cables 2.2.1 CONTROL-DB15 Connector, Am phenol Hood 17-1657-15 AMP Receptable 205205-2 Camera Pin # Signal Name 12 +ExSync 4 -ExSync 5 +FrameSel 13 -FrameSel 14 +TDISEL0 6 -TDISEL0 8 +TDISEL1 7 -TDISEL1 10 SCLK 2 S Data In 9 SLOAD 11 RESETIN 1 S Data Out 15 GND Fairchild Imaging • CAM/CCD-2KLV.TDI & CA[...]

  • Page 15

    PRELIMINARY 2.2.2 LVDS Data, J7 & J8 connecto r, 3M 10140-6000EC connector, 3M 10340- 3210-000 hood or equivilent. Fairchild Imaging • CAM/CCD-2KLV.TDI & CAM/CCD-4KLV.TDI Li ne Scan Camera User’s Manual • Rev 073004 • 15 of 38 LVDS Data, J7 Camera Pin # Signal Name LVDS Data, J8 Camera Pin # Signal Name 18 +D0 18 +D16 43 -D0 43 -D16[...]

  • Page 16

    PRELIMINARY 2.3 Power Supply The camera uses a single voltage input, normally set to 12 volts @ 0.7 Amps typ., supplied through a Hirose connector. The supply must support a 850mA current surge for 100ms for proper camera operation. Ripple and noise is required to be < 50 mV RMS for best camera noise performance. Cable construction with shielded[...]

  • Page 17

    PRELIMINARY SECTION 3 Camera Control 3.1 Quick Start with LVDS Interface Follow your frame grabber manufacturer’s instructions when inserting the frame grabber card into your PC. Be sure that you install the correct configuration software that matches the camera that you are using. Fairchild Imaging supplies configuration files for each camera ty[...]

  • Page 18

    PRELIMINARY 3.3 Providing External Triggering There are two ways to provide external triggering to the 2K & 4K TDI LVDS cameras: • Directly send the external trigger to the camera’s DB15 connector as mentioned earlier. • Provide an external trigger to the frame grabber and it will send the EXSYNC signal to the camera. 3.3.1 Direct Trigger[...]

  • Page 19

    PRELIMINARY 3.2.3 TTL Trigger Source If the external trigger source is a TTL level, the signal needs to be conv erted to a LVDS signal before sending it to the camera. An example of this circuit is illustrated below: EX SY N C + EX SY N C - EX T. TR I GGER U1 SN 65LVD S3487/ SO 5 6 8 13 14 16 2 3 10 11 1 7 9 15 4 12 DO 2- DO 2+ GN D D O4- DO 4+ VC [...]

  • Page 20

    PRELIMINARY EXSYN C - EXSYN C + 3.5 Frame Mode Framing mode is an excellent tool for mechanical and optical aligning of the camera to the target. Frame mode is available in master mode only and the line rate is fixed at 23.19 KHz. EXTERNAL TRIGGER (TTL) CAMERA CONNECTOR J 5 DSUB 15- P 4 12 FRAME GRABBER AMP 100 CONNECTO R J3 AMP 10 0 95 100 33 24 G[...]

  • Page 21

    PRELIMINARY WIRING CONNECTION CAM DB15 +FRAME SEL (pin 5) - FRAME SEL (pin 13) - LVALB (pin 45) - HSYNC - LVALB (pin 20) + HSYNC CAM J8 + VSYNC - VSYNC - FVAL (pin 45) + FVAL (pin 20) CAM J7 F R A M E G R A B B E R + USER I/O -USER I/O Fairchild Imaging • CAM/CCD-2KLV.TDI & CAM/CCD-4KLV.TDI Li ne Scan Camera User’s Manual • Rev 073004 •[...]

  • Page 22

    PRELIMINARY 3.6 System Connection CAM T A R G E T LED Arra y LED TRIGGER (Inverted FRAME SEL) LED Dri ver VSYNC HSYNC FRAME SEL SIGNAL F R A M E G R A B B E R VOLPI 18111.001 How to operate in framing mode 1. The camera must be running in master mode. • External sync signal cannot be present at power up. 2. Provide a LVDS active low “FRAME SEL?[...]

  • Page 23

    PRELIMINARY 3.7 TDI Length Selection TDI length selection for the 2K/4KTDI LVDS camera can be selected using the combination of TDISEL0 and TDISEL1 input signal into the DB15 control connector. The TDISEL0 and TDISEL1 are LVDS level signals. They are typically wired to the user control I/O of the frame grabber. For 2K / 4KTDI LVDS cameras, the TDI [...]

  • Page 24

    PRELIMINARY 3.8 Gain and Offset Calibration Gain and offset calibration are supported with use of the "FI LVDS Camera Control" graphic user interface (GUI). Note: When saving directly into ROM, stored values are not applied until after power cycle. Values written to RAM are implemented immediately. 3.9 How to Modify Gain & Offset Valu[...]

  • Page 25

    PRELIMINARY 3.10 Data Bus The 2K and 4K TDI cameras have 4 channels of 8-bit digital data in RS-644 (LVDS) format. See Reference B of this manual for detailed information on RS644. Both 2K and 4K TDI cameras output the clocking signals STROBE and LVAL. 3.10.1 STROBE STROBE is an internal pixel clock inside the camera (fixed at 25 MHz) data rate. To[...]

  • Page 26

    PRELIMINARY SECTION 4 Mechanical and Optical Considerations 4.1 Camera Dimensions and Mounting The 2K and 4K TDI camera housings are manufactured with high precision. Sensor alignment is to the four M4 face mounting holes. The 2K and 4K TDI camera housings are equipped with four M4 mounting holes on the front and two M4 mounting holes on one side a[...]

  • Page 27

    PRELIMINARY 4.2 Lenses The 2K and 4K TDI cameras as shipped from the factory accept M58 optical components with M58 threads. The 4K TDI camera only acc epts M58 lens types. A sample lens system for 256 DPI would include the following: 40mm lens, Schneider P/N 25-014798 Folus Mount, Schneider P/N 21-013048 Adapter, Schneider P/N 25-020054 When the l[...]

  • Page 28

    PRELIMINARY 4.3 Mechanical Drawing of Optional Camera Face Mounting “L” Bracket Contact your Fairchild Imaging representative for more details. 4.4 Lenses Fairchild Imaging does not supply lenses. An ex ample lens setup is detailed in Section 4.2 above. Fairchild Imaging • CAM/CCD-2KLV.TDI & CAM/CCD-4KLV.TDI Li ne Scan Camera User’s Man[...]

  • Page 29

    PRELIMINARY 4.5 Positioning Accuracy of th e Sensor Chip in the Camera Position accuracy of the sensor chip in th e horizontal and vertical dir ection is + 2 mils. Rotational positioning accuracy is as shown. Reference position is the center-line of the four M4 mounting holes of the camera housing. Since the translatory and rotational positioning t[...]

  • Page 30

    PRELIMINARY 4.8 Lens Modeling Several camera companies have included this and like information in their manuals. For reference material it is very useful. The focal point is the point at which the image of an infinitely distant object is bro ught to focus. The effective focal length (f’) is the d istance from the second principal poin t to the se[...]

  • Page 31

    PRELIMINARY SECTION 5 Handling Instructions 5.1 Electrostatic Discharge The Fairchild Imaging Osprey camera uses TDI technology in a CCD base, and as all such devices, has some limited inherent susceptibility to electrostatic discharge (ESD). All reasonable and customary design steps have been taken to provide ESD protection circuitry. Electrostati[...]

  • Page 32

    PRELIMINARY SECTION 6 Troubleshooting 6.1 Check Simple Things First When troubleshooting, you want to start the process with the obvious components contained within your system: • Computer system: hardware & software • Is the frame grabber plugged into the correct slot on the mother board? • Are all electrical connections secure? • Chec[...]

  • Page 33

    PRELIMINARY Everything Seems to be Working, But No Image Remove the cover from your PC and reset all the cards into the mother board. Sometimes when you move your PC, cards inside the PC work themselves loose. Don’t forget to check for optical path obscuration also. Data Clocking/Output Signals Verify the presence of all data clocking and output [...]

  • Page 34

    PRELIMINARY Look at your light source. Keep in mind that it is better on the si de of too much light rather than too little. Exce ss light allows internal ga in reduction in the camera which, in turn, improves camera dynamic r ange. Also, if your light source is AC instead of DC this will make the image look noisy. If the object you are inspecting [...]

  • Page 35

    PRELIMINARY SECTION 7 Product Support If, after troubleshooting your camera, you are still having problems, collect the following data about your application and call Fairchild Imaging Custo mer Support. Note: You may also want to photocopy this fax page for sending information to Fairchild Imaging @ 408-735-7352 Your Name Company name Your phone n[...]

  • Page 36

    PRELIMINARY REFERENCE A Providing External Trigger Using PCI-1424 Frame Grabber 1. Modify the frame grabber cable with the following connection: Refer to the NI PCI-1424 TO 4KTDI LVDS CABLE PIN CONFIGURATION • Disconnect the wires that are connected to pins 95 and 100 of connector 5 (SCSI 100) • Use a 6 inch coax cable and connect a BNC connect[...]

  • Page 37

    PRELIMINARY REFERENCE B Introduction to LVDS National Semiconductor first introduced LVDS as a standard in 1994. National recognized that the demand for bandwidth was increasing at an exponential rate while users also desired low power dissipation. This exceeded the speed capabilities of RS-422 and RS- 485 differential transmission standards. While[...]

  • Page 38

    PRELIMINARY Fairchild Imaging • CAM/CCD-2KLV.TDI & CAM/CCD-4KLV.TDI Li ne Scan Camera User’s Manual • Rev 073004 • 38 of 38 The LVDS Standard LVDS is currently standardized by the TIA/EIA (Telecommunications Industry Association/Electronic Industries Association) AN SI/TIA/EIA-644-A (LVDS) Standard. The generic (multi-application) LVDS [...]