Hall-effect ferromagnetic-article-proximity sensor

Details Hall-effect ferromagnetic-article-proximity sensor Hall-effect ferromagnetic-article-proximity sensor

1995-06-07

1998-07-14

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Displacement

32420725, G01P 348, G01P 354, G01B 714

Patent

active

057810052

ABSTRACT:
A Hall-effect sensor is presented which is adapted to sense a ferromagnetic object, including an integrated circuit chip having a planar Hall element which is positioned in, parallel to, and defines a sensor plane having a front side and a back side, and which element is normal to and centered on a sensor axis, and a magnet structure having an N pole and an S pole, the magnet structure being positioned behind the sensor plane and positioned so that an S pole and an N pole are adjacent each other and both are adjacent the element.

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