Electricity: measuring and testing – Electrical speed measuring – Including speed-related frequency generator
Patent
1994-12-27
1996-11-12
Strecker, Gerard R.
Electricity: measuring and testing
Electrical speed measuring
Including speed-related frequency generator
384448, G01P 3488
Patent
active
055743617
ABSTRACT:
A bearing assembly for a vehicle including a fixed element, a rotating element rotating relative to the fixed element about an axis, and an annular sensor connected to one of the fixed element and the rotating element. The sensor includes a pick-up coil and an annular magnet connected to the pick-up coil. The magnet has a plurality of magnetic regions which alternate in polarity around the magnet. The magnet generates a magnetic flux path magnetically coupling the magnet to the coil and resulting in the generation of an electrical signal in the coil. The rotating bearing element includes a plurality of gear teeth. The gear teeth generate a change in the reluctance of the magnetic flux path to vary the electrical signal in response to the angular speed of the fixed element relative to the rotating element.
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Ausavich Timothy C.
Bloom Jeffrey J.
Seefeldt James D.
SSI Technologies, Inc.
Strecker Gerard R.
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