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Dalstar DS-44-04M30, Руководство пользователя и справочник

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4M30 Camera User’s Manual

40

DALSA

03-32-10030-03

Figure 9. EIA-644 Example

Unused EIA-644 Inputs and Outputs

Unused outputs should be left unconnected. This will reduce power dissipation within
the camera and reduce radiated emissions.

Unused inputs should also be left unconnected; EIA-644 chips have fail-safe features that
guarantee a known logic state (HIGH) in fault conditions (unconnected, shorted, or
unterminated). Do not connect cables to unused inputs. Cables can act as antennae and
cause erratic camera behavior.

Cable Lengths

Figure 10 shows a graph of ideal communication data rate vs. cable length for the EIA-644
standard.

Содержание DS-44-04M30

Страница 1: ...4M30 DS 44 04M30 DS 46 04M30 30 fps 2k x 2k CCD Camera User s Manual and Reference Doc 03 32 10030 Rev 03 ...

Страница 2: ...oducts are manufactured using the latest state of the art equipment to ensure product reliability DALSTAR refers to all DALSA area scan products For further information not included in this manual or for information on DALSA s extensive line of image sensing products please contact us DALSA Sales Offices Waterloo Europe Asia Pacific 605 McMurray Rd Waterloo ON N2V 2E9 Canada Tel 519 886 6000 Fax 5...

Страница 3: ...2 9 Timing 18 Camera Operation ______________________________________________________ 20 3 1 How to Control the Camera 20 3 2 ADC Commands 22 3 3 Clock Commands 22 3 4 Control Register Reference 23 3 5 Reading the Camera Type 23 3 6 Reading the Firmware Revision 24 3 7 Resetting the ADC boards soft reset 24 3 8 Resetting the Camera hard reset 24 3 9 Adjusting Gain 25 3 10 Adjusting User Offset 26 ...

Страница 4: ... Cleaning 36 5 2 Maintenance 38 Troubleshooting ________________________________________________________ 39 Warranty _____________________________________________________________ 40 7 1 Limited One Year Warranty 40 Appendix A ___________________________________________________________ 41 LVDS EIA 644 Reference 41 Index _______________________________________________________________ 44 ...

Страница 5: ...M30 is the standard 4M30 camera DS 46 04M30 has a sensor with taped on coverglass Description The 4M30 digital camera provides high sensitivity 12 bit images with 2k x 2k spatial resolution at up to 30 frames per second fps The 4M30 is a full frame CCD camera using a progressive scan CCD to simultaneously achieve outstanding resolution and gray scale characteristics A square pixel format and high ...

Страница 6: ...tical size 24 576mm H x 24 576 mm V Chip size 26 860 mm H x 26 508 mm V Pixel size 12µm x 12µm Active pixels 4 1024 H x 1024 V Total number of pixels 2096 H x 2060 V Optical black pixels Left 20 Right 20 Timing pixels Left 4 Right 4 Dummy register cells Left 7 Right 7 Optical black lines Bottom 6 Top 6 Table 2 IA DA 2048 Sensor Cosmetic Specifications Specification Grade 02 a Number of first and l...

Страница 7: ...lusters are defined as a pixel or group of pixel blemishes and are allowed provided they are smaller or equal to the sizes specified in e 5 Illuminated blemish analysis done at 70 of VFLL 2 86µW cm 2 6 Column and row defects not permitted 7 Better than grade 02 sensors may be available Please contact DALSA sales if interested 1 3 Camera Performance Specifications Table 3 4M30 Camera Performance Sp...

Страница 8: ...put Voltage V 5 4 975 5 025 Ambient Temperature C 25 Gain X 1x Electro Optical Specifications Units Min Typical Max Dynamic Range dB 64 0 67 0 1 Pixel Response Non Uniformity rms 2 0 3 0 2 4 System Noise DN rms 2 1 2 4 Notes 1 Dynamic Range 20 log10 Counts Full Well Read Noise 2 PRNU STDEV 100 frames saturation MEAN saturation Dark Offset in darkness 100 3 System Noise Read Noise e Gain e DN dark ...

Страница 9: ...stallation Do not use damaged cables or connectors or the camera may be damaged 6 Connect data serial interface and power cables 7 After connecting cables apply power to the camera The POST power on self test LED on the back of the camera should glow green after one second to indicate that the camera is operating and ready to receive commands 2 2 Input Output The camera provides 12 bit LVDS data a...

Страница 10: ...camera power POST Green Camera Power On Self Test successful Camera failed Power On Self Test BIN Green Not Operational Not Operational MODE Green Camera is in an external trigger mode uses external signal to trigger image capture Camera is triggering image capture internally KDQQHO GDWD RXWSXW KDQQHO GDWD RXWSXW KDQQHO GDWD RXWSXW KDQQHO GDWD RXWSXW KDQQHO GDWD RXWSXW KDQQHO GDWD RXWSXW 7ULJJHU L...

Страница 11: ... that meets the 4M30 s requirements Universal Power Supply part number 24 00001 02 contact DALSA for more information but it should not be considered the only choice Many high quality supplies are available from other vendors DALSA assumes no responsibility for the use of these supplies When setting up the camera s power supplies follow these guidelines x Do not connect or disconnect cable while p...

Страница 12: ...ut Table 6 DATA Connector Pinout Pin Symbol Pin Symbol Pin Symbol Pin Symbol 1 D 0 16 Reserved 31 NC 46 GND 2 D 0 17 D 7 32 NC 47 NC 3 D 1 18 D 7 33 NC 48 NC 4 D 1 19 D 8 34 NC 49 NC 5 D 2 20 D 8 35 NC 50 NC 6 D 2 21 D 9 36 NC 51 NC 7 D 3 22 D 9 37 NC 52 NC 8 D 3 23 D 10 38 NC 53 Reserved 9 D 4 24 D 10 39 NC 54 Reserved 10 D 4 25 D 11 40 NC 55 VSYNC 11 D 5 26 D 11 41 NC 56 VSYNC 12 D 5 27 NC 42 NC...

Страница 13: ...ble 8 Clock Signal Descriptions Signal Description PIXCLK PIXCLK Pixel clock true and complement 40MHz Output Data is valid on the falling edge HSYNC HSYNC Horizontal sync true and complement Output HSYNC high indicates the camera is outputting a valid line of data VSYNC VSYNC Vertical sync true and complement Output VSYNC high indicates the camera is outputting a valid frame of data 2 6 Serial Co...

Страница 14: ...ack IMPORTANT Both the PC AT and the camera are configured as DTE Data Terminal Equipment devices requiring the TXD and RXD lines to be swapped when interconnecting the two note that pin 4 normally the yellow wire is not used on the RJ 11 That is the TXD pin represents DATA OUT and the RXD pin represents DATA IN on both devices so that one device s TXD line must connect to the other device s RXD l...

Страница 15: ...cified as a low profile RJ 11 modular connector The connector is a 6 position model but only the center four positions are populated with contacts It will mate with either the 4 position or 6 position cable plugs This type of connector typically requires special assembly tools complete cable assemblies are available from suppliers such as Digi Key Digi Key 701 Brooks Ave South Thief River Falls MN...

Страница 16: ... frame imager the camera will continue to integrate during read out unless externally shuttered or strobed 2 9 Timing The 4M30 pixel clock runs at 40 MHz so each pixel clock cycle will be 1 40 000 000 or 25ns The following diagram and tables describe the correct timing requirements for the 4M30 camera Figure 7 4M30 Timing V SYN C D ata H SYN C PIXEL CLO CK 1 2 3 A B C C E D F ...

Страница 17: ...lling edge of HSYNC Post Scan pixels E represents the number of falling clock edges between a falling HSYNC and a rising HSYNC F represents the number of falling clock edges from the falling edge of HSYNC to the falling edge of VSYNC Table 10 HSYNC Pixel Timing Horizontal Binning Mode A B C D E F 1x 213 18 1024 18 196 2 Table 11 VSYNC Pixel Timing HSYNC falling edges VSYNC falling edge Vertical Bi...

Страница 18: ...epts 8 bit command value pairs via its RJ 11 serial port using RS 232 compatible signals Camera commands are divided into two basic sets clock commands which apply to the electronics that drive the image sensor These include clock generation frame rate integration time and binning Clock commands effect the entire camera and are not channel specific A single command will impact all channels ADC com...

Страница 19: ...valid to the 4M30 user A number of functions and modes depend on the ADC Control Register settings These settings are detailed in the following sections The Write Control Register command is used to write data that controls specific camera triggering and test functions This command must be followed by a data byte with bits defined in Table 15 The Read command allows interrogation of the camera to ...

Страница 20: ...rite Command Read Command Channel Function Hex Binary Hex Binary Reset Camera 80h 1000 0000 NA NA 1 2 3 4 Resets all registers to default values Read Camera Type NA NA C3h 1100 0011 1 2 3 4 Returns Camera ID register 4Bh Read Firmware Rev NA NA C5h 1100 0101 1 2 3 4 Returns Firmware revision register Control Register 82h 1000 0010 C2h 1100 0010 1 2 3 4 Control Register settings 8Ah 1000 1010 NA NA...

Страница 21: ...al Integration Only 0 Camera flushes charge between frames 1 Charge is not flushed 1 1 Always 0 0 Control Register 82h C2h 0 Serial Trigger Bit 0 3 5 Reading the Camera Type This read command returns an 8 bit value unique to the type of camera interrogated A 4M30 will return a value of 4Bh when this command is issued This is useful for applications that need to function with multiple DALSTAR camer...

Страница 22: ...initial values before settling in to the calibrated dark reference level of approximately 50 counts This is useful because under some conditions issuing a soft reset to the ADC board s microprocessor after camera operating conditions have changed will improve the rate at which the offset control loop pulls into the calibrated level This is one of only two write commands that are not followed by a ...

Страница 23: ...ost significant bits of this value are actually used The amplifier used for gain control has a ranger of 40 dB which equates to an adjustment increment of 0 00244 dB 40dB 2 14 The camera gain value is calculated according to the following equation Value 27306 log10 Gain Where 1 0 d Gain d 10 0 Example Set Channel 1 to 2 5x Gain Use these command value pairs set the camera to 2 5x gain you must wri...

Страница 24: ...endently Normally the same value will be written to all four channels The value is calculated according to the following equation Value 218 u Offset Gain Where Offset is in counts and 4095 d Offset d 4095 And 1 d Gain d 10 and is defined as above This means that the offset is dependent on the gain and can be adjusted with a resolution of 0 5 x Gain in DN counts Example Set Channel 2 to 20 DN Offse...

Страница 25: ...with the same set point value The default value is 50 DNs or counts Example Set the Channel 2 AOC Set Point to 32 DNs Value 32 20h Command Value Binary 0001 1000 0010 0000 Hex 18h 20 3 12 No Clean Mode There is no way to prevent the CCD imager from integrating accumulating charge due to light falling on the imager Under some conditions this will cause the image to show smearing in the vertical dir...

Страница 26: ...limited to the frame period less an overhead factor required for proper operation of the CCD Maximum integration time is defined by this equation Max Integration Time 1 Frame Rate 32 35 ms This equation is valid for all modes free running external trigger and external integrate modes WARNING Do not set integration time higher than the limits of the equation above Unpredictable operation may result...

Страница 27: ...the right side of the rear cover will light to indicate that an externally synchronized mode is active Free Running Programmed Integration The camera speed is controlled by writing a 3 byte integration time value in µs to the three Integration Time registers These three bytes are then combined to form a 24 bit integration time The number represents the integer number of microseconds the camera wil...

Страница 28: ...m logic 0 to 1 while triggering with the TRIGGER IN connector Programmed Integration Serial Trigger For external serial controlled triggering with a programmed integration time a TTL rising edge on bit 0 of the Control Register triggers the camera to acquire one frame of data Integration begins within 175 ns after the rising edge and stops when the programmed integration time has completed After t...

Страница 29: ...igger a new frame acquisition The camera is armed when the read out of the acquired frame is completed No additional rising edges or triggers should be allowed during the image acquisition or frame read out This means in this mode TRIGGER IN necessarily controls both integration and frame rate When the camera is in External Integration Mode the MODE LED will be illuminated on the camera back to in...

Страница 30: ... one time Ensure the correct value for all bits are used when changing camera modes 4 Use commands 8Ah 8Bh 8Ch to set the 24 bit Integration time value Value 1 25s 32 35ms 4650 µs 00122Ah Write Frame Rate LS Byte Write Frame Rate Center Byte Write Frame Rate MS Byte Command Value Command Value Command Value Binary 1000 1010 0010 1010 1000 1011 0001 0010 1000 1100 0000 0000 Hex 8Ah 2Ah 8Bh 12h 8Ch ...

Страница 31: ...er will initiate a new frame of data using the programmed integration time To achieve 2 5 fps a TTL pulse must be sent to the camera every 400 ms 1 2 5 External Integration This is the same as the External Integration SMA Trigger Mode or the External Integration Serial Trigger Mode Refer to section 3 14 Controlling Integration Mode ...

Страница 32: ...4M30 Camera User s Manual 32 DALSA 03 32 10030 03 4 2SWLFDO DQG 0HFKDQLFDO RQVLGHUDWLRQV 4 1 Mechanical Interface Figure 8 Camera Dimensions ...

Страница 33: ...lerances Additional Dimensions Center of sensor with respect to lens mount Planarity of lens flange to sensor Rotation of sensor 4 3 Mounting the Camera The 4M30 can be mounted via the 3 8 deep 1 4 20 threaded tripod mount located on the bottom of the camera Not applicable to part number DS 46 04M30 ...

Страница 34: ...ay also exhibit a highly non uniform response when affected by charge build up with some pixels displaying a much higher response when the sensor is exposed to uniform illumination The charge normally dissipates within 24 hours and the sensor returns to normal operation Preventing ESD Damage To prevent ESD damage DALSA advises you to take the following handling precautions 1 Ground yourself prior ...

Страница 35: ...r unless the dust particles are being held by an electrostatic charge in which case either an ionized 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 contamination However the friction between rubber and the window may produce electrostatic char...

Страница 36: ...4M30 Camera User s Manual 36 DALSA 03 32 10030 03 5 2 Maintenance There are no user serviceable parts on this camera Please contact DALSA service ...

Страница 37: ...4M30 Camera User s Manual 37 DALSA 03 32 10030 03 6 7URXEOHVKRRWLQJ ...

Страница 38: ...ware interfacing or peripherals not provided by DALSA DALSA shall have no obligation to modify or update products once manufactured This warranty does not apply to DALSA Software Products Note If the camera has a non standard cover glass part number DS 46 04M30 the warranty is void on the CCD How to Obtain Service for Your Equipment If you want to return your product for repair contact DALSA Custo...

Страница 39: ...ufacturers in a variety of fabrication technologies such as CMOS and GaAs The EIA 644 standard does not define specific voltages so it can migrate from 5V power supplies to 3 3V and sub 3V DALSA recommends the use of 5V CMOS line drivers and receivers such as National Semiconductor parts DS90C0C31 quad line driver and DS90C032 quad line receiver To achieve full benefit of the common mode rejection...

Страница 40: ...ce radiated emissions Unused inputs should also be left unconnected EIA 644 chips have fail safe features that guarantee a known logic state HIGH in fault conditions unconnected shorted or unterminated Do not connect cables to unused inputs Cables can act as antennae and cause erratic camera behavior Cable Lengths Figure 10 shows a graph of ideal communication data rate vs cable length for the EIA...

Страница 41: ...anual 41 DALSA 03 32 10030 03 Figure 10 EIA 644 Data Rate vs Cable Length DEOH HQJWK P D W D 5 D W H 0 E S V LWWHU 0HDVXUHG DW P9 LIIHUHQWLDO LWWHU 0HDVXUHG DW 9 LIIHUHQWLDO 7 DEOH 7 SLFDO DWD 5DWH YV DEOH HQJWK 1DWLRQDO 6 ...

Страница 42: ... 15 control register 21 data bits 15 clocking signals 13 format 7 output 12 output connector 9 rate 7 read out 12 definitions ADC 19 data clocking 13 data signal 13 timing 17 DTE 14 dynamic range 8 EIA 644 39 inputs outputs 39 ESD damage 34 External Integrate Mode 28 features 5 firmware revision 22 frame rate 29 frame transfer 6 gain 8 adjusting 23 equation 23 range 8 hard reset 22 HSYNC 13 inputs...

Страница 43: ...solution 7 RJ 11 14 RMS noise 8 RS 232 13 18 RS232 serial port 9 6 sensor 6 block diagram 6 characteristics 6 cleaning 35 protection 35 rotation 33 structure 6 serial communication 13 serial trigger 28 signals data 13 size 7 SMA connector 13 15 trigger 28 soft reset 22 specifications 7 electro optical 8 start bit 15 state diagrams 17 stop bit 15 7 Technical Support 38 telephone style connector 14 ...

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