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CV-M2

 

 

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6.4.7. Sensor Gate Control 

This function is for applications with strobe flash illuminations or long time accumulations up to 
several frames. The resulting video is then read out after the first FVAL (or SG), following the 

trailing edge of the Sensor Gate Control signal.  
The sensor gate control signal can be synchronized by the FVAL signal. Fig. 29A. and fig. 29B. 
shows the minimum sensor gate signal width if it is synchronized to FVAL. 
 
To use this mode:  
Set function: 

Trigger mode “Normal”  

TR=0 

 Sensor 

gate 

control 

SG=1 

 

LVAL synchronous accumulation 

LS=1  

 

Scanning format 

SC=0 through SC=4 

 

Output select 

OS=0, OS=1 

 

Polarity and other functions 

Input: 

Sensor gate control to Camera Link or pin 10 on 12-pin connector.  

 

Important notes on using this mode.

 

 
 

 

LVAL

DATA  OUT

SUB

SG

FVAL

SG  di sabl e

EEN

Exposur e

Per i od

Sensor   Gat e

Cont r ol

Si gnal

al ways  Low

al ways  Hi gh

No  Dat a

 

Fig. 29. Sensor Gate Control 

FVAL

SG

514ck

444ck

LVAL

78ck

( 1. 95us)

Sensor   Gat e

Cont r ol   Si gnal

608ck

1282ck

( 1ck=25ns)

82ck

( 2. 05us)

( 15. 2us)

( 32. 05us)

 

Fig. 29A. Sensor Gate Control single channel details  

FVAL

SG

514ck

LVAL

80ck

( 2us)

Sensor   Gat e

Cont r ol   Si gnal

190ck

864ck

( 1ck=25ns)

32ck

80ck

( 2us)

( 4. 75us)

( 21. 6us)

 

Fig. 29B. Sensor Gate Control dual channel details 

Summary of Contents for CV-M2

Page 1: ...Digital Monochrome 2 Megapixel Progressive Scan Camera CV M2 Operation Manual Camera Revision A Manual Version 1 0 M2ManualJul22 doc JPT 22 07 03 ...

Page 2: ...annel 12 6 2 4 Horizontal timing details single channel 12 6 2 5 Horizontal timing dual channel 13 6 2 6 Horizontal timing details dual channel 13 6 2 7 LVAL synchronous accumulation 14 6 2 8 LVAL a synchronous accumulation 15 6 2 9 Partial scanning vertical timing 16 6 3 Input Output of Timing Signals 17 6 3 1 Input of Timing Signals 17 6 3 2 Output of Timing Signals 17 6 4 Trigger Modes 17 6 4 1...

Page 3: ...of the camera main body and tripod mount plate 3 Main Features Digital 1 monochrome 2 megapixel progressive scan CCD camera 1600 h x 1200 v effective 7 4 µm square pixels 10 or 8 bit video output as Camera Link 17 full frames second for single channel video readout 30 frames second with dual channel video readout One push black level and gain calibrations for dual channel readout Higher frame rate...

Page 4: ...3 4 2 1 1 CCD sensor 2 Lens mount C mount 3 Rear panel with SW1 4 Digital output connector Camera Link 5 DC in Trigger in RS 232C connector 6 BNC connector for monitor video output 7 Gain potentiometer 8 Mounting holes M3 8x Fig 1 Locations 3 ...

Page 5: ...wer than the digital video output 5 3 Digital Output Connector for Camera Link Type 26 pin MRD connector 13 14 1 26 3M 10226 1A10JL Fig 3 Camera Link connector The digital output signals follow the Camera Link standardized multiplexed signal output interface The output driver is NS type DS90CR285 and the receiver is NS type DS90CR286 The following signals are found on the Digital Output Connector ...

Page 6: ...or iris control The signal for iris video output is taken from the video signal after the gain control If it is used for auto iris control output video level can only be adjusted on the lens level adjust Fig 4 Video output 5 4 3 Trigger input GND 5V 15k TTL 1k GND 100n 1k 68k 100k 1n 10k Trig input pin 10 GND 5V 15k TTL 1k GND 100n 1k 68k 100k 1n 10k Trig input pin 10 The trigger inputs on pin 10 ...

Page 7: ...8 Pair 9 Pair 10 Pair 11 Sheilds TXD out RXD in Ext trig 1 in Ground Signal Connector pin CV M2 Camera Camera Link Cable Camera Signals To Frame Grabber Ext Trig 2 in Camera Link Pin 1 14 13 26 X0 X1 X2 X3 Xclk SerTFG SerTC CC1 CC2 CC3 CC4 Sheilds 4 x 7 1 MUX 8bit 10bit L2 L0 L3 L1 L4 L2 L5 L3 L6 L4 L7 L5 L8 L6 L9 L7 R2 L8 R3 L9 R4 NC R5 NC R6 R8 R7 R9 R8 NC R9 NC NC R0 NC R1 NC R2 NC R3 NC R4 NC ...

Page 8: ...sh The accumulation can be LVAL synchronous or LVAL a synchronous In the following some of the functions are shown in details 6 1 1 Dual video output The video read out through Camera Link can be via a single or via double channels OS 0 for single channel OS 1 for dual channel If dual video outputs are used the frame grabber PC should reconstruct the image frame from the 2 half images A D A D R L ...

Page 9: ...Video out Dump Read out Continuous video out Continuous video out Triggered Frame Fig 10 Restart continuous trigger mode 6 1 4 PIV mode The Particle Image Velocimetry mode can be used in applications where 2 images should be taken with a very short time interval TR 5 It can only be used with strobe flash or lasers as illumination The first accumulation time is 4 µsec The second is as long as the t...

Page 10: ... work in normal continuous mode TR 0 The function is on if SG 1 The SG signal is an internal signal which is low when the accumulated charge on the photo diode array is transferred to the vertical ccd registers for read out When the Sensor Gate Control input is high the internal SG pulse is inhibited and the signal accumulation on the photo diode array can take place When the strobe flash is fired...

Page 11: ...lighted areas The slope over the knee point is only 20 The Knee point can be adjusted from 712 to 1023 With the knee at 890 the camera can reproduce scene highlight up to 175 The image contrast is reduced to 20 for scene luminance higher than the knee point This function can be used in applications where the scene brightness is divided in an area in shadow and another in bright sunshine 0 Scene lu...

Page 12: ... Bl ank Si ngl e O ut put 16 16 2 1 3 1 6 0 0 1 5 9 9 1 5 9 8 4 5 1 5 9 7 1 5 9 6 D ual Lch O ut put D ual R ch O ut put 1200 Ef f ect i ve Li nes Bl ank 2 Li nes 1 1200 2 3 1199 1198 272 272 276 D um m y Bl ank 1216 Li nes 1916 Pi xel s 1092 Pi xel s 4 R eser ved C ol um ns 4 R eser ved C ol um ns 4 4 4 1092 Pi xel s 4 4 2 4 4 Fig 15 CCD sensor layout 6 2 2 Vertical timing Normal mode Full frame ...

Page 13: ...R eser ved 4ck R eser ved 54ck Fig 17 Horizontal timing single channel 6 2 4 Horizontal timing details single channel OS 0 For all modes Full frame 1ck 25 nsec LVAL D VAL D ATA O U T 1600ck 16ck D um m y Bl ank 16ck 1916ck 1674ck C C D O ut Ef f ect i ve Pi xel s 1 LVAL per i od FVAL 242ck 34ck D um m y Bl ank FVAL R ai si ng Edge FVAL Fal l i ng Edge 276ck 28ck 6ck 34ck 242ck 4ck 54ck 4ck O B O B...

Page 14: ...g Edge 34ck 34ck 272ck EEN 4ck R eser ved 54ck Fig 19 Horizontal timing dual channel 6 2 6 Horizontal timing details dual channel OS 1 For all modes Full frame 1ck 25 nsec LVAL D VAL D ATA O U T L ch 800ck O B 16ck 272ck D um m y Bl ank 1092ck 854ck C C D O ut L ch 1 2 3 4 5 1 2 3 4 5 7 9 7 7 9 6 7 9 8 8 0 0 7 9 9 7 9 7 7 9 6 7 9 8 7 9 9 8 0 0 Ef f ect i ve Pi xel s 6ck 6ck 1 LVAL per i od FVAL O ...

Page 15: ...hed before the frame is read out It makes it possible to have a trigger rate close to the frame rate 1 FVAL 3 LVAL Important notes on using this mode In LVAL synchronous PWC mode exposure jitter up to 1 LVAL can be the result if the trigger trailing edge is not synchronized to LVAL LVAL Ext Tr i g M i n 2L 0 5L SU B SG Exposur e Per i od Vi r t ual SU B Equi val ence Pul se D at a out del ay Si ng...

Page 16: ...he exposure time 1 FVAL 3 LVAL Important notes on using this mode In LVAL a synchronous PWC mode there is no exposure jitter LVAL Ext Tr i g 0 5L M i n 2L SU B 104ck 52ck SG Exposur e Per i od Vi r t ual SU B Equi val ence Pul se D at a out del ay 0 5L t o 1 5L Exposur e del ay 156ck 3 9us FVAL Speci f i ed N um ber of LVALs by shut t er set Act ual Exposur e Per i od D ATA O U T O B O B Fig 22 LV...

Page 17: ...ow 1LVAL 47 9 µsec single 27 3 µsec dual Fig 23 Partial scanning vertical timing The following table shows the figures for partial scanning The maximum frame rate FPS for single and dual channel readout is shown for normal mode TR 0 For triggered modes it will be lower because the accumulation time is added to the read out time 1LVAL 47 9 µsec single 27 3 µsec dual Table showing values for the ver...

Page 18: ...Modes This camera can operate in 6 primary modes 1 non triggered mode and 5 external trigger modes which can be set by RS 232C commands 1 Normal continuous Mode TR 0 Pre selected exposure SM 0 SM 1 2 Edge Pre select Mode TR 1 Pre selected exposure SM 0 SM 1 3 Restart Continuous Trigger Mode TR 2 Pre selected exposure SM 0 SM 1 4 Pulse Width Control Mode TR 3 Pulse width controlled exposure 5 Burst...

Page 19: ...ble to have CCIR EIA composite analogue video output for monitor use It is for full scan only The video can be 50 or 60 frames per second with a line frequency at 15 734 kHz CCIR has 290 active lines Shutter speed 313 LVAL EIA has 240 active lines Shutter speed 263 LVAL To use this mode Set function Trigger mode Normal TR 0 Shutter mode Normal or Programmable SM 0 SM 1 Shutter Speed SH 0 through 9...

Page 20: ...nd other functions Input Ext trigger to Camera Link or pin 10 on 12 pin connector Important notes on using this mode The duration of the trigger should be 2LVAL to 3FVAL If LS 0 Synchronous accumulation the minimum trigger interval is 1 FVAL 3 LVAL The new exposure should not be finish before the previous frame is read out If LS 1 Asynchronous accumulation the minimum trigger interval is the expos...

Page 21: ...to use a lens with video controlled iris in intelligent traffic surveillance applications To use this mode Set function Trigger mode Restart continuous trigger TR 2 LVAL synchronous accumulation LS 0 Shutter mode Normal or Programmable SM 0 SM 1 Shutter Speed SH 0 through 9 Programmable exposure PE 1 through 1216 Scanning format SC 0 through SC 4 Output select OS 0 OS 1 Polarity and other function...

Page 22: ...be 2LVAL to Thermal noise and dark current noise will increase by accumulation time therefore the exposure time is not recommended to exceed 2 seconds If LS 0 Synchronous accumulation the minimum trigger interval is 1 FVAL 3 LVAL The new exposure should not be finished before the previous frame is read out If LS 1 Asynchronous accumulation the minimum trigger interval is the exposure time 3 LVAL A...

Page 23: ...is read out To use this mode Set function Trigger mode Burst EPS TR 4 LVAL synchronous accumulation LS 0 Burst Shutter 1 BSH1 1 through 1216 Burst Shutter 2 BSH2 1 through 1216 Burst Shutter 3 BSH3 1 through 1216 Burst Shutter 4 BSH4 1 through 1216 Burst Shutter 5 BSH5 1 through 1216 Scanning format SC 0 through SC 4 Output select OS 0 OS 1 Polarity and other functions Input Ext trigger to Camera ...

Page 24: ...s accumulation LS 1 Scanning format SC 0 through SC 4 Output select OS 0 OS 1 Polarity and other functions Input Ext trigger to Camera Link or pin 10 on 12 pin connector 2 strobe flash Important notes on using this mode The duration of the trigger should be 2LVAL to 3FVAL A new trigger must not be applied before FVAL is low after second frame readout 1LVAL 47 9 µsec single 27 3 µsec dual For horiz...

Page 25: ...G 1 LVAL synchronous accumulation LS 1 Scanning format SC 0 through SC 4 Output select OS 0 OS 1 Polarity and other functions Input Sensor gate control to Camera Link or pin 10 on 12 pin connector Important notes on using this mode LVAL DATA O UT SUB SG FVAL SG di sabl e EEN Exposur e Per i od Sensor G at e Cont r ol Si gnal al ways Low al ways Hi gh No Dat a Fig 29 Sensor Gate Control FVAL SG 514...

Page 26: ...olarity This command can change the trigger polarity GS Gamma select To select gamma 1 or 0 45 1 is linear relation between scene luminance and video output 0 45 will expand the contrast in dark and compress the contras in light parts of the scene RP Rear pot Select master gain from the potentiometer or RS 232C Sw1 4 has highest priority AU Auto dual adjust This function is used to calibrate the 2...

Page 27: ...1 2 3 4 Trig 1 term Video out RS 232 potm Digital Analog TTL 75Ω SW 1 Factory use TTL 75Ω Gain 1 2 3 4 Trig 1 term Video out RS 232 potm Digital Analog TTL 75Ω SW 1 Factory use TTL 75Ω Fig 30 SW1 on camera rear 7 2 RS 232C Camera Link switch The internal switch HR CL can be used to select the control input via the 12 pin Hirose as RS 232C or via Camera Link Factory setting is Camera Link The switc...

Page 28: ... GND 7 RTS 8 CTS 9 CI 9 pin D con PC COM PORT CAMERA Protocol Transmit setting to camera NN Parameter CR LF NN is any kind of command Capital or small letters The camera answers COMPLETE CR LF To have all communication visible on the emulator screen start with EB 1 CR LF The camera answers COMPLETE CR LF Transmit request command to camera NN CR LF NN is any kind of command The camera answers NN Pa...

Page 29: ... BSH1 EPS Burst shutter 1 BSH1 Param CR LF BSH2 EPS Burst shutter 2 BSH2 Param CR LF BSH3 EPS Burst shutter 3 BSH3 Param CR LF BSH4 EPS Burst shutter 4 BSH4 Param CR LF BSH5 EPS Burst shutter 5 BSH5 Param CR LF 1 1216 As programmable shutter D Signals and polarity LS LVAL synchronous accum LS Param CR LF 0 syn accum 1 asyn accum TI Trigger Input TI Param CR LF 0 CamerLink 1 12 pin Hirose TP Trigge...

Page 30: ...es an easy and efficient ActiveX interface built for MS Windows 98 ME NT and 2000 The OCX interface has the ability to connect to the camera using the serial interface of the PC by reading and writing properties for the camera This integration requires simple programming skills within Visual Basic Visual C or similar languages in a Microsoft Windows environment Below the different windows are show...

Page 31: ... External Appearance and Dimensions Fig 38 Outline 9 Specifications 9 1 Spectral sensitivity 300 400 500 600 700 800 Wave lenght nm 1 0 0 8 0 6 0 4 0 2 0 0 Relative response 900 Fig 39 Spectral sensitivity for M2 ...

Page 32: ...amma 1 0 or 0 45 Single channel only Knee function Slope 100 to 20 Knee point adjustable Gain Gain range Manual potentiometer or remote 3 to 12 dB 0 4095 Synchronization Int X tal Ext random trigger LVAL synch or asynch Inputs TTL Camera Link Ext trigger TTL 4 V 2 V Ext trigger Outputs TTL Camera Link EEN output Pixel clock output D0 D9 output DVAL output LVAL output FVAL output EEN output Not spe...

Page 33: ... such as changes of jumper and switch setting Typical CCD Characteristics The following effects may be observed on the video monitor screen They do not indicate any fault of the CCD camera but do associate with typical CCD characteristics V Smear Due to an excessive bright object such as electric lighting sun or strong reflection vertical smear may be visible on the video monitor screen This pheno...

Page 34: ...081 1 EN 50082 1 Company and product names mentioned in this manual are trademarks or registered trademarks of their respective owners JAI A S cannot be held responsible for any technical or typographical errors and reserves the right to make changes to products and documentation without prior notification JAI A S Denmark Phone 45 4457 8888 Fax 45 4491 8880 www jai com JAI Corporation Japan Phone ...

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