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Measurement of the resonance curve (Acoustics)
#34
(05-22-2020, 03:47 PM)Sebastian Staacks Wrote: Also, you can now try a different technique that might be interesting to those of you who are working with resonances. The beta version allows you to generate white noise in the audio spectrum experiment (Settings, below the number of samples), so you can feed the white noise into your resonator and can see the amplified resonant frequencies in the audio spectrum.
So I have a version for such a technique. A single spectrum of the response to the white noise collected during one second (in order to have one Hz resolution) is too noisy, but an averaging over 100 runs gives the result very similar to the result obtained by the frequency sweep. I have limited the spectrum by 2500 Hz. Some problem appeared for the so large frequency sweep, the tone generator is switching off after some hundreds points... (To be discussed in the feedback forum).


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.phyphox   resonance_white_FFT2500.phyphox (Size: 4.65 KB / Downloads: 195)
.phyphox   acoustic_resonance_5-2.phyphox (Size: 7.65 KB / Downloads: 123)
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RE: Measurement of the resonance curve (Acoustics) - by solid - 12-29-2020, 03:09 PM

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