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Welcome to the CyBENCH Salvage Pages - Hall Effect Switches
Hall effect switches are typically combined Hall elements and a switching circuit.
Quite simply, they are electronic switches operated my placing a magnet close to them.
No direct physical contact is required, just close proximity to a magnet.
They can operate at high frequency - high speed revolution counter.
Some have a binary style output - on or off, others have a linear output.
Devices with a linear output give indication of magnetic strength.
This can also be used to judge the distance from the magnet.
These devices are used in many electronic devices.
Typical applications include:
They offer better reliability than mechanical contact switches.
They do not suffer dirt as would an optical sensor.
They are suited to harsh environments - total enclosed.