Electricity: measuring and testing – Magnetic – Displacement
Patent
1998-04-09
2000-08-15
Patidar, Jay
Electricity: measuring and testing
Magnetic
Displacement
32420725, 324174, G01R 3306, G01B 730
Patent
active
061041866
ABSTRACT:
A magnetoresistance element detects an angular position of a toothed gear rotated by an engine. The element (first element) is positioned at a vicinity of the peripheral edge of the gear tooth in a magnetic filed supplied from a bias magnet. The magnetic field direction is changed by the tooth, which is detected by the element even when the gear is not rotated before the engine starts. To detect an exact angle of the gear, an additional magnetoresistance element positioned perpendicularly to the first element may be used. The gear tooth position is detected by the first element even when the gear is not rotated, and once the gear rotates, the second element detects an exact angular position of the gear.
REFERENCES:
patent: 4506217 (1985-03-01), Rothley et al.
patent: 4677377 (1987-06-01), Takahashi et al.
patent: 5041785 (1991-08-01), Bogaerts et al.
patent: 5134371 (1992-07-01), Watanabe et al.
patent: 5359287 (1994-10-01), Watanabe
patent: 5477143 (1995-12-01), Wu
patent: 5493219 (1996-02-01), Makino et al.
patent: 5637995 (1997-06-01), Izawa et al.
patent: 5644226 (1997-07-01), Aoyama et al.
Aoyama Seiki
Uenoyama Hirofumi
Yamada Toshitaka
Denso Corporation
Patidar Jay
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