Magnetoresistive speed sensor

Details Magnetoresistive speed sensor Magnetoresistive speed sensor

2004-12-20

2009-11-10

LeDynh, Bot L (Department: 2858)

Electricity: measuring and testing

Magnetic

Displacement

C324S207210, C324S252000

Reexamination Certificate

active

07615994

ABSTRACT:
Consistent with an example embodiment, there is a magnetoresistive speed sensor with a permanent magnet and a sensor for a magnetic field for detecting the speed of an object rotating about an x-axis. The magnetoresistive speed sensor is equipped with a measuring direction, in which an external magnetic interference field does not influence the measurement result. The measuring direction is aligned parallel with an x-direction and two sensors are disposed with displacement from one another and normal to the measuring direction.

REFERENCES:
patent: 4791365 (1988-12-01), Johannes et al.
patent: 5477143 (1995-12-01), Wu
patent: 2002/0175673 (2002-11-01), Butzmann
patent: 2002/0175678 (2002-11-01), Butzmann
patent: 101 18 819 (2002-10-01), None
patent: 0 580 207 (1994-01-01), None
patent: WO 99/67651 (1999-12-01), None

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