Hello everyone, after reading endless hours of useful answers here, I can't find a solution for my problem and have to ask for your advice:
I'm building a vi to measure, evaluate, show and save vibration measurements. I use a Producer/Consumer pattern and I will get my data from an NI Acceleration Sensor. Therefore I currently use the DAQmx signal simulation.
In NIMAX I have a sample rate of 1000hz, continuous reading, buffer 20000 samples (-> attached vi)
The data runs into the ZoomFFT.vi of the Sound and Vibration Toolkit, cause I want to analyse a certain frequency area with a certain delta_f (0.25hz).
This works and atm I get every 4s a new FFT of the desired area.
My question now is how do I get a ZoomFFT of 5s of the acquired data. Or longer, 10s, 20s. How is the amount of data which flows into the ZoomFFT defined? At the moment, as far as I understand: 4s of the gathered data is analyzed.
Ive attached a simplified VI of my current VI. Further calculations with the FFT values are missing.
Attached VI: LV 2012
