Magnetic field sensor

Details Magnetic field sensor Magnetic field sensor

2006-01-10

2006-01-10

LeDynh, Bot (Department: 2862)

Electricity: measuring and testing

Magnetic

Magnetometers

C324S244000

Reexamination Certificate

active

06984978

ABSTRACT:
An integrated magnetic field sensing device includes at least two magnetoresistive elements which are biased in a first direction by an integral conductor and are sensitive to magnetic field components in a direction perpendicular to the first direction. The sensitivity of the device to a magnetic field is adjustable and is related to the level of the bias current. In a current measuring application, two of the magnetic field sensing devices are mounted on opposite sides of and perpendicular to a conductor carrying a current to be measured. In a portable current measuring apparatus, two of the magnetic field sensors are mounted in a housing that assists in locating the magnetic field sensors relative to the conductor carrying the current to be measured.

REFERENCES:
patent: 5825595 (1998-10-01), Gill
patent: 5945825 (1999-08-01), Clemens
patent: 6020738 (2000-02-01), Van Den Berg et al.
patent: 6329818 (2001-12-01), Tokunaga et al.
patent: 2003/0057938 (2003-03-01), Goetz
patent: 197 43 335 (1998-11-01), None
patent: 197 55 673 (1999-07-01), None
patent: WO 89/10570 (1989-11-01), None

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