Acquisition of IMAQdx - synchronization problems

Hi all

I built a code a VI in which I put in place a camera IMAQdx acquisition in a loop of producer-consumer (see attached VI). The code also controls the camera exposure time.

I would like to record images at 10 frames per second, the camera is set up to acquire NI Max 10 fps, but surprisingly, the code saves more than 10 frames per second, even if I inserted a synchronization feature in the loop of the producer.

Any ideas on what does not work?

Thank you.

Kind regards

E.S.

There are three modes of acquisition of the camera: Snap, sequence and Grab based on parameters that you set:

Wink (single image acquisition): continuous = 0; Buffer Count = 1

Sequence (fixed number of frames): continuous = 0; County of buffer > 1

Enter (Continuous Acquisition): Continuous = 1; County of buffer > 1

- So I guess you want continuous acquisition, which means that you must set the buffer has more than 1 (usually more than 3) that the driver uses internally to avoid overwriting images.

-You can check The Grab and configuration example VI attributes that lets the user view the current attributes and settings, update the attribute parameters, acquire images continuously and display images in an image control.

-From the example above, you can also see the framerate that acquire and then proceed to the backup of images.

-To access the example help-> find examples--> search for Grab.

Tags: NI Software

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