Multifunction DAQ

cancel
Showing results for 
Search instead for 
Did you mean: 

rising edge phase shift

Hi

 

I am using a CDAQ 9178 and have a 9229 analogue card. I have two 28V square waves that are aroudn 90 degrees sperated. The frequency is around 10-20hz. I am sampling at 10000 samples per second and recording 20000 samples of data. so two seconds. 

 

How can i measure phase shift between the two rising edges for every pulse. 

 

I am using the 9229 analogue card as it can handle the higher voltage plus all channels are sampled simultaneous 

 

I have attahced my programme. 

0 Kudos
Message 1 of 2
(2,996 Views)

Hi JWinstanley,

 

You can measure the phase shift by measuring the time difference between rising edges of each signal.

 

I have attached a document which may be of use to you: http://www.ni.com/white-paper/4529/en/

 

Best of luck!

 

SFuller

 

 

0 Kudos
Message 2 of 2
(2,964 Views)