acquiring phase diff. btwn 2 channels of HP54201D digi oscilloscope

[electronic and software engineering]

i wish to obtain the phase difference between 2 signals on channel 1 and 2 of the HP54201D digitizing oscilloscope on a LabView 6.1 VI via a GPIB connection

[Jeremy Braden]

Have you gotten the two signals? If not, you might consider posting to the GPIB forum.

Here are two links to others asking the same question.

http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RNAME=ViewQuestion&HOID=506500000008000000E1950000&ECategory=Measurement+Hardware.Dynamic+Signal+Acquisition+and+Analysis

http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RNAME=ViewQuestion&HOID=506500000008000000D62B0000&ECategory=LabVIEW.LabVIEW+General

[LesHammer]

I asked my scope expert. His advice was:

1) measure the period of the signal T1
2) Measure the time between the rising edges of the two signals T2
3) calculate the phase in degrees as (T2/T1) * 360

He was not certain whether or not these were automatic measurements on the 54201.

But many Agilent scopes do have a way to acquire signals on channel 1&2, find the period of channel 1, and find the rising edges of channel 1 and channel 2 and obtain the difference. (You just have to calculate the phase yourself from the time information.)

Les.hammer@CompleteTest.com