Magnetic sensor

Details Magnetic sensor Magnetic sensor

2006-11-09

2008-08-05

LeDynh, Bot (Department: 2862)

Electricity: measuring and testing

Magnetic

Magnetometers

C324S207210, C324S207250

Reexamination Certificate

active

07408344

ABSTRACT:
A magnetic sensor includes a sensing chip having a magnetoresistive element for sensing a magnetic vector and a magnet for biasing the magnetic vector sensed by the magnetoresistive element. The sensing chip senses change in the magnetic vector for detecting a behavior of a magnetic body based on a variation of a resistance value of the magnetoresistive element when biasing of the magnetic vector is caused by the magnet in cooperation with the magnetic body that is in motion in a proximity of the sensing chip, and the magnet takes a shape of a flat cylinder that houses the sensing chip in a hollow space bored therein.

REFERENCES:
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patent: 6614223 (2003-09-01), Schroeder et al.
patent: 7141966 (2006-11-01), Sumiya et al.
patent: 2006/0001421 (2006-01-01), Sumiya et al.
patent: A-07-333236 (1995-12-01), None
patent: A-2001-116815 (2001-04-01), None
patent: A-2004-172334 (2004-06-01), None
patent: A-2006-112801 (2006-04-01), None

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