DAQ at multiple sampling rates with one NI device using analog input

Question

Csaba 2011-11-25

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https://ww2.mathworks.cn/matlabcentral/answers/22254-daq-at-multiple-sampling-rates-with-one-ni-device-using-analog-input

Hello everyone!

I'm wondering if there is any possibility of DAQ at different sampling rates using one NI device. I tried to find some documentation but with not much success. Any references?

I thought at some solution starting more than one analog input objects or setting different sampling rates for the channels. Anyone already tested some of these solutions or have another one to propose ?

Thanks in advance, Best regards,

Csaba

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Answer 1

Daniel Shub 2011-11-26

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https://ww2.mathworks.cn/matlabcentral/answers/22254-daq-at-multiple-sampling-rates-with-one-ni-device-using-analog-input#answer_29372

According to http://digital.ni.com/public.nsf/allkb/96FD2F4685065C7686256F25006EE8DE

The only current device that allows multiple analog input sampling rates is the Compact DAQ NI 9174 and NI 9178.

Assuming you have one of these devices, then it should be possible. It probably is not currently possible in MATLAB since I would guess that it falls into the

If specialized analog measurement capabilities such as hardware clocked digital I/O are valuable to you, please let us know by completing the form at the bottom of this page.

http://www.mathworks.co.uk/products/daq/supportedio14005.html#CompactDAQ