how to determine time lag between input and output signal

[sonic]

I used NI-FGEN and NI-Scope in Bender element test and i used NI-FGEN generate input wave (square waveform).I want to know how to determine the time lag or travel time between input and out put wave, can i see from NI-Scope?Thanks you so much"

[DFGray]

If you have two similar signals, you can use the NI-SCOPE measurements to get either the phase or time delay between them. Set up the NI-SCOPE digitizer with your input wave in channel 0 and output wave in channel 1. After a successful acquisition, set the Waveform Measurement->Other Channel attribute to the channel 0. Use niScope Read Measurement.vi on channel 1 to take the measurement. This assumes your are using LabVIEW. The C/C++ procedure is essentially the same.