Alkeria NECTA Series - End-Of-Exposure Trigger; Trigger Delay

6. Trigger 72
When the module is disabled
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, lines are continuously acquired and the time between lines is controlled
by the LinePeriod property.
6.5 END-OF-EXPOSURE TRIGGER
The end-of-exposure trigger (ExposureEndTrigger) event terminates the exposure of a line. The only
available trigger source for this module is External. When the module is disabled
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, the duration of the
exposure is controlled by the Shutter control value (see Section 8.10.8).
6.6 TRIGGER DELAY
Each module can delay the signaling of the trigger event for a period of time, set through the module’s
TriggerDelay property.
When an external signal is used as a trigger source, the delay set through TriggerDelay combines with
the delay due to the debounce time set on the related input port (see Section 4.3.1.1).
Note
When encoder is not used, it is mandatory to set EncoderDelay to 0. If not,
no trigger event will be raised.
For line-start trigger, user can also set TriggerDelay when in free run. If controlling an external light-
ning system with Strobe, TriggerDelay can be used to compensate delay introduced by controlling-
chain and time for light to reach steady-state. Following the example of Figure 4.23 a representation of
the statement above is depicted in Figure 6.1
Trigger Event
Strobe
Exposure
Trigger Delay
Shutter
Strobe End Delay
Strobe Start Delay
Light
intensity
Control-chain Delay
Lamp t
On
0%
100%
Figure 6.1: Trigger delay with external light
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LineStartTrigger.Enabled = false
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ExposureEndTrigger.Enabled = false