"Contact mechanism"
Posted: 10 Feb 2014, 00:19
Is the term "Contact mechanism" the best one available?
Actually, here's another one: "metal leaf" contacts. Magnetic reed switches use metal leaves, it's just that they're not closed under physical pressure, but rather magnetic attraction.
However, some switches don't use contacts at all.
The confusing one for me is capacitive switches, where the second capacitor plate (coil spring, foam disc etc) appears to be allowed to touch the PCB. Doesn't capacitance stop working if you remove the dielectric? Wouldn't that mess up the controller's perception of the switch?
Actually, here's another one: "metal leaf" contacts. Magnetic reed switches use metal leaves, it's just that they're not closed under physical pressure, but rather magnetic attraction.
However, some switches don't use contacts at all.
The confusing one for me is capacitive switches, where the second capacitor plate (coil spring, foam disc etc) appears to be allowed to touch the PCB. Doesn't capacitance stop working if you remove the dielectric? Wouldn't that mess up the controller's perception of the switch?