How can

[cecile]

I generate a 0.01Hz sinusoidal voltage with labview 6 and PCI 6036E?I thought of "benchtop function generator.vi" or another function generator VI but is it really possible to generate a so low frequency?I just need two oscillations of a very clean signal.I haven't bought the board yet, but I am playing with labview VI's since a few days to see if it is possible. On most of the VI's concerning AO, you can't really choose the frequency. At least this buffers length and cycles are not clear for me. In "benchtop function generator.vi", it looks like it is impossible to choose such a low frequency. Do I just need to change the VI (changing the precision of the sgl number for frequency), or is there a real limitation of the board? In this case should I buy another
card or should I think of different solutions?
Thanks
Cecile

[JustinBritten]

I generate a 0.01Hz sinusoidal voltage with labview 6 and PCI 6036E?I thought of "benchtop function generator.vi" or another function generator VI but is it really possible to generate a so low frequency?I just need two oscillations of a very clean signal.Hi Cecile,

In the Benchtop Function Generator and Function Generator examples, the frequency is the update rate divided by the waveform length. For example, if you specify your waveform to be 1000 points, and you have an update rate of 10,000 then you will have an actual frequency of 10Hz.

The Benchtop Frequency Generator is meant to look like a stand-alone instrument. I would recommend using the Frequency Generator example and specifying a ratio of waveform length to update rate such that you get a frequency of 0.01Hz. With a waveform length of 1000 the update would have to be 10.

Regards,
Justin Britten

Applications Engineer
National Instruments