The hall effect is used in many sensors used in our engines. Gasoline or diesel. ...
“The hall effect is used in many sensors used in our engines. Gasoline or diesel. ...”
And they work really well, too - until they don’t! The effect is very small, and requires an electronic amplifier, which usually drops dead after several years of exposure to heat (from the engine or in anti-lock brakes).
Back in the day, really, really good computer keyboards used hall-effect switches - completely immune to dirt and dust,inherently bounce-free and would last “forever”. In the race to the bottom, these aren’t made anymore.