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 Zero crossing phase diff. through digital samplin
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Lucien85

Singapore
1 Posts

Posted - 12/05/2011 :  3:02:46 PM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
A software is to be developed with Lab-View to record and compare two voltage signals simultaneously. The software shall be of the function to determine the time difference at the zero-crosses of the two signals with confirmed errors.
The analyzed results will be interpreted as the phase differences to do phase calibrations.

I am using 'Clark-Hess Model 5500-2 Digital phase standard' which generates 2 analog sine waves of the same frequency, connected to a PC with Labview via GPIB.

May i know

1)How do i generate the waveform of the 2 sine waves concurrently on Labview? The instrument driver is not available and thus the driver samples are not available to me.

2)What sampling rate & resolution of the analog to digital converter hardware do i need? Or are there better/cheaper ways to digitize the 2 sine waves?

3)Using Labview, how do i perform linear regressions at the zero crossings of the signals to measure phase difference?

fifacoins11

Algeria
4 Posts

Posted - 10/04/2015 :  01:42:23 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
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