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TIME to FREQUENCY FFT
Posted Mar 20, 2016, 8:36 p.m. EDT 2 Replies
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Dear all,
I am simulating pulse echo technique using ultrasound. I have my results in time domain. Now I need frequency spectrum of my time dependent study result. In study 1 "time dependent " time range is = range( 0, 5.0e-8, 9.0e-5 )s and generated ultrasound frequency is 1 MHz.
So I add study 2 "Time to frequency FFT" in my COMSOL model. Now I dont know what to do. I tried once and get 0 Hz frequency result.
Thank you
I am simulating pulse echo technique using ultrasound. I have my results in time domain. Now I need frequency spectrum of my time dependent study result. In study 1 "time dependent " time range is = range( 0, 5.0e-8, 9.0e-5 )s and generated ultrasound frequency is 1 MHz.
So I add study 2 "Time to frequency FFT" in my COMSOL model. Now I dont know what to do. I tried once and get 0 Hz frequency result.
Thank you
2 Replies Last Post Oct 12, 2016, 11:39 a.m. EDT
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Posted:
9 years ago
Hey Sagar,
Any progress with your Time to FFT Study step?
I planned to use this step to convert the time domain response of a geometric nonlinear clamped clamped beam to a harmonic excitation.
Thanks
--
FA
Any progress with your Time to FFT Study step?
I planned to use this step to convert the time domain response of a geometric nonlinear clamped clamped beam to a harmonic excitation.
Thanks
--
FA
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Posted:
8 years ago
I cannot find the FFT solver option.
Where do i look for it?
Where do i look for it?