Genie M1024, Руководство пользователя

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Operational Reference Genie Monochrome Series-GigE Vision Camera
Synchronization Timing
Genie supports two types of sensor synchronization used to align the exposure to sensor timing:
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Synchronous Mode : Exposure is synchronous to the line timing of the sensor. Exposure granularity is 1µs and
the readout can be concurrent to the exposure for the fastest possible frame rate.
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Reset Mode : Timing is reset to initiate exposure of next frame. Exposure granularity is 1µs, but readout must
be sequential to exposure, reducing the maximum achievable frame rate.
Synchronous Mode
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Synchronous mode starts the exposure period aligned to the sensor horizontal line timing and the programmable
duration granularity is 1µs.
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In the case of the Genie M640, a horizontal line occurs every 31.77µs.
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Exposure duration is from a minimum of 100µs up to 4 sec.
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In this mode, sensor exposure and sensor readout of the previous frame's exposure occur simultaneously. This
allows operating the sensor up to its maximum frame rate.
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Any trigger received before the end of the exposure is ignored. The application can elect to receive messages
about ignored triggers. See
" Events " on page 65 .
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Since the external trigger is asynchronous with the Genie horizontal line timing, the frame exposure start is
subject to 1 horizontal line jitter.
Synchronous Mode Timing example for Genie M640