Table of Contents
Advertisement
7.2.2
ExposureTime
This command is effective only when Exposure Mode is set to Timed. It is for setting exposure
time. The setting step for exposure time is 1 μsec per step.
Minimum:
Maximum:
Note: The actual exposure time is added the values listed in the following table against the
setting exposure time due to the sensor characteristics. However, Exposure Active signal is
not the actual exposure time, but the setting exposure time.
Link Configuration
CXP6_X2
CXP6_X1
CXP3_X2
CXP3_X1
Note:
In free-running mode with the frame start trigger set to OFF, the maximum setting value of the
exposure time is limited by the frame rate setting.
Although 8 seconds is the maximum frame rate setting, the upper limit of the exposure time setting
value (for all configurations except CXP3_X1) is 7,999,750 µsec., which is 250 µsec. shorter than the
maximum. In the case of CXP_X3, it is 500 µsec. shorter.
In EPS trigger operation, where Exposure Time is not influenced by the frame rate setting, the
upper limit is 8 seconds.
However, please note the following:
As a characteristic of the senso used in SP-20000-CXP2, the black level tends to increase depending
on the exposure time and the tenmperature of the sensor. SP-20000-CXP2 compensates black shift
inside the camera but the following are the maximum ambient temperatures at which camera
performance can be guaranteed for 8 secs of exposure time.
SP-20000M-CXP2: Up to 15 ºC of ambient temperature
SP-20000C-CXP2: Up to 5ºC of ambient temperature
Table – 30
Associated GenICam register information
GenICam Name
Exposure Mode
Exposure Time
Exposure Time Raw
7.2.3
Behavior if Trigger Overlap is set to Readout
In the SP-20000-PMCL, if the accumulation of the next frame starts while the current
image is read out, the varied value of accumulation time is changed to 1 Line period inside the
camera. This is done so that the accumulation start signal will not affect the output
signal while it is overlapped.
However, the shutter noise at the exposure start period will appear on images. It is
approximately 70LSB/10-bit as the maximum.
SP-20000M-CXP2 / SP-20000C-CXP-2
10 μsec (Note: The actual exposure time is 299µ
8 seconds （When Frame Start Trigger Mode is ON）
Sensor actual exposure time
Exposure Time + 289us
Exposure Time + 577us
Access
Off
R/W
Timed
TriggerWidth
R/W
10 to 8000000 [us]
R/W
10 to 8000000 [us]
Values
- 40 -
Category
Acquisition Control
Acquisition Control
Acquisition Control
Advertisement
Table of Contents
