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Compaq DAQ Square wave analysis

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Hi 


I am using a CDAQ-9178 with NI9229 4 channel 50 kS/s analogue card. I have fed in two independt square wave signals that are 90° out of phase. The two signals are below 20hz. The sample rate is set to 25khz and i am sampling for a finite period of 50khz so two seconds. The two seconds should show 40 pulses on both indpenedent channels.

 

I want to do the following measurements.

 

-Measure minimum and maximum phase shift between between the two channels for the two seconds

-Measure minimum and maximum pulse width of both channels for two seconds. 

 

Is there VI created that can do this. I am using the DAQ assistant with data output. Both set of data for the two channels are save in this data signal. 

 

Thanks 


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