How can I reduce reconfiguration time channel between acquisitions HAVE? Thank you

Hello world

I need to acquire signals from sin 40 (2000 kHz) at a sampling rate of 250 kech. / s through using a daq card 6225 with its AIs. In order to achieve this sampling rate I must acquire all the samples of the first channel (something like 2000 samples), then the same thing with channel 2,... up to channel 40.  My problem is that I am wasting a lot of time (about 170 ms) whenever I move a channel because Labview reconfigures the channels.

When I move a channel to acquire samples of 2000 the only parameter that changes is the string that's all.

I tried many things with the wizard DAQ and Daqmx examples but without success.

Is there a way to reduce the time between 2 acquisitions... paramating?

Any help would be great.

User

If you insist on the channels one by one, you can not avoid the delay. Of course, you can capture all channels at once. The effective sampling rate would be 6.25 kech. / s, if you did all the 40 at a time.

Tags: NI Software

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