Rotation angle sensor

Details Rotation angle sensor Rotation angle sensor

1996-12-27

1998-09-22

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

123617, 32420725, G01B 730, G01D 514, F02D 900

Patent

active

058119680

ABSTRACT:
A rotation angle sensor for sensing a rotation angle of a pivotal member, such a throttle valve shaft, comprises a first unit including a magnet member and a second unit including first, second and third magnetic piece members which are circumferentially arranged to concentrically surrounds the magnet member. The first and second magnetic piece members are symmetrically arranged with respect to the magnet member. A structure is employed for connecting one of the first and second units to the pivotal member. A first electric device is employed for generating a first signal in accordance with a density of magnetic flux produced between the first and third magnetic piece members, and a second electric device is employed for generating a second signal in accordance with a density of magnetic flux produced between the second and third magnetic piece members.

REFERENCES:
patent: 2536805 (1951-01-01), Hansen, Jr.
patent: 3162804 (1964-12-01), Parsons
patent: 3530317 (1970-09-01), Lang
patent: 4392375 (1983-07-01), Eguchi et al.
patent: 5164668 (1992-11-01), Alfors
patent: 5627465 (1997-05-01), Alfors et al.

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