6211 phase angle

[kamkon]

Hello,

I wish to measure a constant phase angle between two signals (the same freqency) applied to two different input analog channels. I would be greatfull if someone explain the algorithm and give the code in LabWindows or LabView.

Second question: for what there is a number of scan list entries described in specification of the 621x devices? Is this possible to create scan list for that devices?

[arielmedina61 · Accepted solution]

Hi kamkon,

I know a method to measure the phase angle between two signals, but it's necessary to take a signal as reference and a difference between signals. This method is useful to measure a small phase angle.

I don't know if it can help you.

Ariel

[JCollado]

I see this marked as the solution but I dont see it.

I have a reference signal and an output signal and I need to find the phase angle.

In other instrument i know the phase angle is 8.69  but not getting the same results in Labview.

I'm also using NI-6211

thanks

[BalazsNagy]

Hi JCollado!

So if I understand your problem, you have two signals, and you want to measure the phase angle between them, with two AI of the NI 6211 ?

As I see this topic is quite old, and the solution isn't avaliable, maybe there was a private message between the other two guys...

I would like to ask you to open a new topic, and describe your problem there. I think it will be better to discuss the solution there. 

Thanks, and best regards,

[JCollado]

Thank you.

I will do that.

[arielmedina61]

Hi, J Collado,

I saw your post. Sorry by delay my post.

I know how to measure the phase angle between two signals, but is needed to get both a signal as reference and a signal difference or "DELTA".
Let me know if this way is possible for solve your problem.

I going to try to send a schematic draw.

Ariel