Rotational position sensor including a helical gear rotor...

Details Rotational position sensor including a helical gear rotor... Rotational position sensor including a helical gear rotor...

2007-04-10

2007-04-10

Patidar, Jay M. (Department: 2862)

Electricity: measuring and testing

Magnetic

Displacement

C324S207210, C324S207220

Reexamination Certificate

active

11224315

ABSTRACT:
A rotation sensor has a sensor and a processing circuit that are provided as an integrated circuit chip (IC chip). The sensor has a magnetic resistance element. The rotation sensor senses an angular change of a magnetic vector as a change of resistance. The rotation sensor is located to face a rotor, or a helical gear used in an automatic transmission. The magnetic resistance element is located such that a sensing plane thereof is parallel to a hypothetical plane perpendicular to the line of inclination of each tooth of the rotor.

REFERENCES:
patent: 5491633 (1996-02-01), Henry et al.
patent: 6545463 (2003-04-01), Dettmann et al.
patent: 2002/0011840 (2002-01-01), Li

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