[V8] Hall efferct sensors
jhp at telus.net
Wed Sep 15 16:48:06 EDT 2004
Regarding the hall effect sensor. There are several types of halls ensors
available . What you need is the type with an attached magnet . ( The
passing tooth is NOT magnetic in most automotive applications ) When the
tooth passes close to the Hall sensor , it disturbes the magnetic field and
the built in differential amplifier puts out a signal . Hence it is
IMPORTANT to have the proper / correct clearance when installing a
These hall sensors are readily available and quite inexpensive . I have
included a company that makes these ( for automotive use ) A common
missconception is that a magnet needs to zip by to trigger it . A compass
held near the hall sensor will tell you if that is actually the type used .
If the old hall sensor itself shows magnetism ( when not powered up ) it
tells you that is the type of hall effect sensor that has a pemanent magnet
attached and is triggered by just a plain metal ziping by it .
intermetall.de/products/overview/sensors/details/sensor4.php with the
usual www in front .
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