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Driven oscillation and resonance with neodym

Very quick post to share a successful gutting of an old computer loudspeaker (external) so that phyphox Tone generator makes both the speaker and a neodym magnet (hanging from a spring over an empty coil of copper wire) vibrate with a very slow beat from a combined 10.95 and 11 Hz signal.

Next step (hopefully) is to send that signal through a diode bridge and then replace the electric motor in the experiment about driven oscillation and resonance.

If it was possible to program the beat to "sweap" from 0.1 Hz to maybe 20 Hz you could perhaps explore resonance in simple small springs in one experiment/measurement using Acceleration Spectrum.

Have not yet tried if neodym could move heavier strings (double bass, 20-100 Hz).

Best regards.


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Driven oscillation and resonance with neodym - by Erik Josefsson - 02-11-2022, 02:06 PM

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