Looking for a VI to calculate phase difference

[SonobondRay]

I am looking a VI that will calculate the Phase difference as a function of time between two sine waves at 20 kHz. I am using LabView7 Express just so we're on the same page.

[KileenC]

Hi,

There is a Extract Single Tone Information.vi that is available from All Functions >> Analyze >> Waveform Measurements. This VI takes a time signal in and returns a detected phase (deg) out. Therefore, you can use one of these VIs for each sine wave and take that difference to determine the phase difference of your sine waves as a function of time.

Note that the Extract Single Tone Information.vi is not available LabVIEW Base package, but is available in all other LabVIEW packages.

Thanks again and have a great day!

Kileen C.
Applications Engineer
National Instruments