8.Features
© 2023 China Daheng Group, Inc. Beijing Image Vision Technology Branch 139
overlap exposure frame period ≤ exposure time + readout time
Time
Overlap area
Overlap area
Frame N
Frame N+1
Frame N+2
Frame N
Frame N+1
Sensor
Exposure
Sensor
Readout
Blank
Blank
Figure 8-16 The exposure sequence diagram in overlap exposure mode
Continuous acquisition mode
If the exposure time is greater than the frame blanking time, the exposure time and the readout time will
be overlapped. As shown in the Figure 8-16.
Trigger acquisition mode
When the interval between two triggers is less than the sum of exposure time and the readout time, it will
occur overlap exposure, as shown in Figure 8-17.
Time
Frame N
Frame N+1
Frame N+2
Frame N
Frame N+1
Sensor
Exposure
Sensor
Readout
Trigger
Trigger
Trigger
Figure 8-17 The trigger acquisition exposure sequence diagram in overlap exposure mode
Compared with non-overlap exposure mode, in overlap exposure mode, the camera can obtain higher
frame rate.
8.3.
Basic Features
8.3.1.
Gain
The MER-G-P/MER-G series camera can adjust the analog gain, and the range of analog gain is as follows:
Model
Adjustment Range
Default/Steps
MER-030-120GM/C-P
0-25dB
0dB, 0.1dB
MER-030-120GM/C
0-25dB
0dB, 0.1dB
MER-031-300GM/C-P
0-16dB
0dB, 0.1dB
