MATLAB IMAGE ACQUISITION TOOLBOX - RELEASE NOTES Guide de l'utilisateur télécharger pdf (Page 169)

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Specifying the Trigger Type

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The camera starts the integration of the incoming light from the first external trigger

input falling edge. At the Nth external trigger input falling edge, integration stops.

Parameter N is required and must be 2 or greater. (N >= 2).

Trigger Mode 3

Use this internal trigger mode to achieve a lower frame rate. When the trigger generates

internally, a frame is acquired and returned. A new frame is not acquired for N x Tf when

N is the parameter and Tf is the cycle time of the fastest frame rate supported by the

camera.

A parameter is required, as described above.

This is an internal trigger mode. The camera issues the trigger internally and cycle time

is N times of the cycle time of the fastest frame rate. Integration time of incoming light is

described in the shutter register. Parameter N is required and must be 1 or greater (N >=

1).

Trigger Mode 4

This mode is the “multiple shutter preset mode.” It is similar to mode 1, but the exposure

time is governed by the shutter property. On each trigger, shutter property defines the

exposure duration. When N triggers are received, a frame is acquired.

Parameter N is required and describes the number of triggers.

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