Hall sensor

[Carter Shore]

An FYI, just in case, since it was not specifically
stated. Hall effect sensors change state when magnetic
field density reaches an internally set threshold.

So make sure you use a ferrous metal to interrupt a
biasing magnetic field (reluctor), or magnets.
Some Hall sensors are built with magnet already in the
package, easy to check with a piece of steel.

Hate for anyone to go to the trouble of machining a
shutter or timing wheel in aluminum, only to see it
not work properly.

Carter

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