10-15-2009 06:37 PM
I am trying to generate square waves with a frequency less than one but it doesn't seem to be possible for some reason. If I set it to 0.5 (for example), I just get a flat line. Tried fooling around with the sampling info (frequency 1 and Fs to 500) but still no go. Is there any way to generate frequencies below 1? thanks in advance
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10-15-2009 08:01 PM
Assuming you are using the Square Waveform function, you just have to set the # of samples to twice the sample rate for a .5 Hz signal. The default of 1000 Samples/Sec and 1000 samples gives you of course, 1 second's worth of data. For .5 Hz, you need to display 2 seconds to see the entire pulse (1/.5).
10-16-2009 01:01 AM
sorry I can't access labview right now
but I've already tried using the sampling rate 500 with 1000 samples and didn't work. isn't it the same as 1000 rate with 2000 samples? thanks for your reply
10-16-2009 01:18 AM
ack i just tested it right now, you are right
apparently it ISN'T the samething using 500 / 1000
thanks a lot and sorry for asking a dumb question