02-17-2022, 05:32 AM
(This post was last modified: 02-17-2022, 05:34 AM by Erik Josefsson.)
It worked! See attached video. Just needs some fine tuning :-)
Iron rod is about 30 cm with three neodym magnets (12x3 mm) attached hanging in a fairly soft spring about 30x7 mm. It is not difficult to attach a phyphox phone to it, so hopefully you could do a "beat sweep" and look at the Acceleration Spectrum on the phone.
Copper wire is about 135 metres long with Ø 0.55 mm. I don't know number of loops. Came out of the box with both wire ends connectable.
Here's the diode bridge (unfortunately no specs): https://www.lascells.com/product-detail/...er-system/
I hope to find a frequency that is bearable to listen to so that you can both hear the beat from the speaker and see it from the light bulb and then follow how it drives the oscillation of the mass+spring.
Best regards.
//Erik
Iron rod is about 30 cm with three neodym magnets (12x3 mm) attached hanging in a fairly soft spring about 30x7 mm. It is not difficult to attach a phyphox phone to it, so hopefully you could do a "beat sweep" and look at the Acceleration Spectrum on the phone.
Copper wire is about 135 metres long with Ø 0.55 mm. I don't know number of loops. Came out of the box with both wire ends connectable.
Here's the diode bridge (unfortunately no specs): https://www.lascells.com/product-detail/...er-system/
I hope to find a frequency that is bearable to listen to so that you can both hear the beat from the speaker and see it from the light bulb and then follow how it drives the oscillation of the mass+spring.
Best regards.
//Erik