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Re: Rpm Sensor (inductance type?)


Toby Paddock
 

Here's a couple of simple things I did with some Allegro
hall sensors. They make it real easy these days. The
ones I used only have 3 pins: +5V, ground, and output.
I don't know about max frequency, but you can follow
the links to their site. There's linear and switching
output types. And one is a switch that turns on when
it sees either pole of the magnet. Free samples online.

Magnetic Sensor as a Control Voltage Source


Whirly-Whirler LFO
Spinning plate toy and magnetic sensor as a
mechanical Low Frequency Oscillator.


- -- - Toby Paddock

----------
bbranham@... wrote:
Does anyone know what type of a component I can use
for an inductance sensor (kind used in like automotive
timing lights) I would like to generate a logic pulse per
voltage pulse for use in a Basic stamp Tachometer for
use on small engines. Will se up to absol. max 10,000
rpm's. Any body have any ideas. Otherwise does
anyone have a good expanation of how a hall effect
sensor works and if i could use it to send a pulse out
as the magnet of the flywheel spins past the sensor.
THanks all

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