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Does PI FFT Interface detect oscillations in real-time?

FSKazi

I wanted to know whether the PI Interface can detect the oscillation exactly at the time that it occurs( in real-time). As shown in the screenshot, I have a oscillating signal. The current time is 7:15:21 PM but the FFT magnitudes of the oscillating signal that are being displayed is of the time 7:08:27 PM. Is it possible for the FFT interface to display the FFT outputs at 7:15 PM ( with a few seconds delay) or will there always be a large delay (in minutes) in displaying the FFT outputs?

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    Hi ​ ,

     

    There will always be a delay between when the interface detects the data and when the server receives the data, and there will be a further delay between when server receives the data and the visualization tool receives the data. If you want to improve the data rate, you could try decreasing the sample rate to avoid flooding the server with data (as mentioned here), but that might not be where your bottleneck is.

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    Hi ​ ,

     

    There will always be a delay between when the interface detects the data and when the server receives the data, and there will be a further delay between when server receives the data and the visualization tool receives the data. If you want to improve the data rate, you could try decreasing the sample rate to avoid flooding the server with data (as mentioned here), but that might not be where your bottleneck is.

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