Exposuremode - JAI GO-5100MP-PGE User Manual

■ When [Frame Start] trigger is [On] and [Trigger OverLap] is [Readout]
• Maximum frame rate of sensor
Sensor FR = 1 / {H_Period × (Height + 36)}
• Maximum frame rate by interface
Interface FR = 920 × 1000000 / (Height × Width × Pack value)
• Maximum frame rate
FR_Cont = Min ( <Sensor FR>, <Interface FR> )
• Exposure time possible within frames
MaxOverlapTime_TrOlrd = (1 / FR_Cont) - (14 × H Period)
• Exposure time outside of frame interval
NonOverlapExposureTime_TrOlrd = ExposureTime - MaxOverlapTime_TrOlrd
However, NonOverlapExposureTime_TrOlrd calculation results that are 0 or below will be considered as 0.
For TriggerWidth, the trigger pulse is equivalent to ExposureTime.
• Maximum frame rate
FR_TrOlrd = 1 / {(1 / FR_Cont) + NonOverlapExposureTime_TrOlrd}
Caution
Although the maximum frame rate value is determined by the GigE bandwidth range, when ROI
is configured, the frame rate cannot exceed the sensor output's allowable frame rate value.

ExposureMode

The following exposure modes are available on the camera.
ExposureMode
Off
Timed
TriggerWidth
* The settings for exposure control and triggers are related to each other. Be sure to configure the
settings described in "Trigger Control".
Actual Exposure Times
The shortest exposure times that can be configured are as follows.
ExposureMode
・The actual exposure time will consist of the image sensor's offset duration (13.73 μs) added to
the setting configured on the camera.
・When [ExposureMode] is set to [Timed] and the exposure time is set to 1 μs, the actual
exposure time will be as follows.
1 μs + 13.7 μs (offset duration of image sensor) = 14.7 μs
・When [ExposureMode] is set to [TriggerWidth], the exposure is slightly longer than the width
of the trigger signal. To achieve an exposure time of 14.7 µs and the exposure time offset is
13.7 µs, use 14.7 µs - 13.7 µs = 1 µs as the high or low time for the trigger signal.
Exposure control is not performed (free-running operation).
Mode in which control is performed using exposure time. Acquire
images using an exposure time configured beforehand on an external
trigger.
Mode in which control of the exposure time is performed using the
pulse width of the trigger input signal. The exposure time will be the
same as the pulse width of the trigger input signal. This allows long
exposure.
Timed
TriggerWidth
Description
Shortest exposure time
14.7 us (8bit)
14.7 us (8bit)
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GO-5100MP-PGE