I have trouble understanding how the calendar for the vi simulate Signal Express. Can anyone help?

I'm generating a signal to 100,000 samples per second. The frequency is 4 Hz. I then pass the signal through the basic vi trigger detection to find out where the wave crosses 0.5.

Since the signal is 4 Hz, the waveform should cross 0.5 each 0.25 sec. However, when I created a table of the times that the trigger is activated, it is not 0.25 seconds.

I don't know if there is a problem with my calculation of the duration of simulation, or if I don't understand how the vi signal simulation works. Thank you very much for your ideas!

Yes, you made a few mistakes or bad assumptions about who express vi.

The frequency is 4 Hz samples per second is of 100,000 samples (orders of magnatude) generated too high are 76 (0.76mSecs worth of data).  1% duty cycle so a transition product only once every thousand loops! 1315 or 1316 loops between L - H transition to be more precise

Try

40 s/s

40Samples (a seconds of data)

right to 50%

Tags: NI Software

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