modal analysis

I am currently using Dewesoft X3 SP2 for a vibration analysis experiment. I have simultaneously acquired signals from two accelerometers, and now I want to calculate the phase difference between these two signals at a specific frequency.

I have already tried the following steps:

Added two accelerometer channels in the channel setup.

Added an FFT analysis module in the math section and selected these two channels as inputs.

I configured the relevant parameters in the FFT settings, such as the window type and frequency range.

However, I cannot find a direct function to calculate the phase difference between the two signals. I checked the FFT result channels and only see the magnitude and phase spectrum for each individual signal.

Is there a direct function in Dewesoft X3 to calculate the phase difference between two signals? Or are there alternative methods to achieve this?

I would like to display the phase difference as a function of frequency in a graph.

My Dewesoft hardware is a Sirius HS. The operating system is Windows 10.

Thanks!

Dear losting dove,

We have an article that describes calculating the time delay between two signals using Correlation math: https://support.dewesoft.com/a/solutions/articles/14000086629?lang=en

Please let us know if this is useful for you.

Best Regards.

Rok