Phase Difference and manipulate it

[tosi]

Hello,

my english is bad, so I post an example;-)
However I try to explain: I build the Phase Differenz of two Signals an then I want to manipulate one of them, so that there is no Phase Difference after that. In the example I use simulated Sinus-Signals. Normally I acquire analog Signals with the PCI-6143 (simultaneous sampled).
Can anybody help me? In my Application with the DAQ the phase difference is display correct. In the example nothing works....

Gruß, tosi

[rpursley8]

Make your two waveforms the same except set the phase of the second one to 90 degrees (i.e. cosine and sine). Feed one straight to the phase difference function and then shift the phase of the second signal by summing scaled versions of the cosine and sine waveforms as shown in the attached. I wrote this so the phase input is in degrees.

[tosi]

Thank you very much - it works!

[boquel]

I am watching for your example; I can't run it.

Can you put your module "phase Diff" ?

Thanks

[Daniel_E]

Boquel,

Hey!  I noticed that this post is about two years old.  You may want to create a new post that references this one.  That way, you may have more of a chance for the community to see it.  You may want to ask if anyone knows how to find the difference in phase between two signals.  I believe you compute the phase for each signal, then subtract.  This is probably what is happening in the subVI and you will most likely have to write that code.

Hope this helps!

Dan