1
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Modulate tone of old mechanical buzzer
You can model the buzzer as a loudspeaker that really, really wants to vibrate at one single frequency, by design. That is, it is a self-excited oscillator with a tightly-defined resonance.
You can ...
- 15.3k
1
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Modulate tone of old mechanical buzzer
The buzzer is electro-mechanical. When powered up the coil is energised and that magnetises the steel core forming an electro-magnet.
The electromagnet pulls in the brown disk in the photo. There ...
- 11.1k
1
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Is there some physical limitation that causes all induction cooktops to be just one coil?
I think methods to improve the even distribution of heat will definitely be developed even at the cost of complexity and engineering challenges; however multiple coils might not be the easiest way to ...
- 8,285
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