CAMERA LINK Q-2A340, Operating And Users Manual

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OPERATING AND USER MANUAL QUARTZ SERIES
32
Burst and Request Mode 7.1.1.
The decoupling of image acquisition and interface data transmission enables capturing a burst of
images at a higher acquisition rate than the interface frame rate.
The camera FIFO memory buffer is
filled up. Bursts are possible in all of the camera’s control modes.
In addition, the moment of interface data transmission can be controlled precisely by the Request
Mode command (section 7.6.2).
After the Integration has finished, the image can be output immediately when Request Mode is set to 0
(RQM0).
If the request mode is set to 1 (RQM1), a preset number of images are released from buffer memory
upon receiving a soft- or hardware trigger.
If the request mode is set to 2 (RQM2), all images are released from buffer memory directly or upon
receiving a soft- or hardware trigger. If multiple images are requested, they are output at the maximum
speed.
Q-2A340 Q-4A150 Q-4A180 Q-12A65
Max resolution 2048 x 1088 2048 x 2048 2048 x 2048 4096 x 3072
Max burst speed
at full resolution 340 fps
(2000 x 1088
CL 10 tap)
180 fps
(2000 x 2048
CL 10 tap)
180 fps
(2000 x 2048
CL 10 tap)
75 fps
(4080 x 3072
CL 10 tap)
Maximum framespeed in burst mode. Table 7.2:
Continuous mode 7.2
The continuous mode is the most basic mode of operation. In continuous mode, the camera captures
images with an integration time set by the user and a frame period set by the user.
Acquisition of images will take place continuously, regardless of trigger signals.
To prevent buffer memory overflow, the request mode must be set to 0 (images are output immediately
after acquisition). Also, the frame speed must be chosen lower than, or equal to the speed that
can be handled by the Camera Link interface. The camera link interface speed is dependent of five
parameters:
Interface clock •
ROI size •
Number of taps in the camera link interface •
Duration of the Lval gap •
Duration of the Fval gap •
For a full frame image (ROI at its maximum), a Fval gap of 2 and a Lval gap of 2, the maximum
sustained frame rates is indicated in the tables below. Note that in 10 tap the maximum width is 2000
For the Q-2A340, Q-4A150 and Q-4A180, and 4080 for the Q12A65. (section 9.6.6).
In continuous mode, the camera output can only run in RQM0 (automatic image output).
Depending on the width of the ROI and the CameraLink interface configuration, the continuous mode
frame rate is either limited by the sensor readout speed or the Camera Link throughput:
) , (
, min ace IMG,interf sensor IMG
t t MAX
FP
=