Measure amplitude of a continuous signal within a given window of time

[lowski]

I'm working on an acqusition system that acquires a continuous 250kHz signal. My goal is to measure the peak-peak amplitude of the first signal response, the probelm with my setup is that the inital part of the signal is always larger than the part of the signal I'm intersted in. If I try to use the signal max pk-pk measurement VI it will repond with the pk-pk measurement of the initial part of the signal. See the attachment for a better understanding, I would still like to display the raw signal as is but I would like to measure the pk-pk voltage of the signal between the yellow cursors.

Thanks in advance... 

[johnsold · Accepted solution]

If the initial transient always occurs in the first 12 microseconds, you can just use Array Subset or the similar Waveform function to extract the latter portion of the waveform. Then use the peak to peak measurement on that subset.

Lynn

[lowski]

Lynn,

Yes,  the initial transient always occurs in the first 12 microseconds...I will give this a try and let you know how it goes thank you

[lowski · Accepted solution]

This was a lot easier than I thought, I used the Get Waveform Subset VI....Thanks Lynn