Why my sample rate is different between ‘step setup’ and 'playback'?

[tchendu]

Hi,

I got a problem when I was using my NI9234 to collect acceleration data.

During the step setup stage, I set the 'sample to read' value to 1k and 'rate' to 1k. But in the playback stage, the 'sample rate' showed as another value (around 1.6k) different to 1k. I could not figure out why that difference occured. Thanks for any suggestion.

Du

[AnalogKid2DigitalMan]

Well, that is expected since the 9234 has discrete levels of sampling rates, with 1.652Ks/s being the minimum.

Refer to pages 16 and 17 of the manual linked below:

http://www.ni.com/pdf/manuals/374238c.pdf

-AK2DM

[tchendu]

that helps a lot, thanks