acquired 100Khz signal with daqmx

[jeanmichelgreen]

Hello

I would like to acquired à sinusoidal voltage at 100Khz with this product : http://sine.ni.com/nips/cds/view/p/lang/fr/nid/207100

and daqmx VI.

Is it possible? How can I do that?

Thanks

Jean

[Thoric]

At 400kS/s you can acquire up to four sample points per period of your 100kHz signal, so long as you don't use any other analogue input channels.

You might be better speaking with your local NI Sales Engineer who will help you determine the best product to meet your specific needs.

[Hooovahh]

Nyqust says you need to sample a signal at 2 times the signal rate to start to understand it before aliasing occurs.  But at 2 times, or even 4 times the sampling rate all you will be able to understand is the frequency of the signal.  Generally a better rule to use is the times 10 rule for real world signals.  This means you need to sample at 1MHz to see the full wave and have a good understanding of its shape, and amplitude.