FFT mode

Simon Simon

Posted on 25.04.2013 14:56

Hello,

I need for an application to control the movement in buildings thanks to triaxial sensors.

For this, I have some level of frequency thresholds to be respected.
So in Dewesoft, I spend my FFT signal but I don't know how to create an FFT signal every 15s time and compare it to two different thresholds depending on the frequency. One of 0 to 10 Hz, one of 10 to 300 Hz

Does anyone have a solution?

DEWESoft Support
Technical support

Posted on 07.04.2015 09:52

Hi,

Time of FFT Math calculation equals to 2*(number_of_lines)/SR.

For comparing result, FFT reference curve or other math channel can be used.