High precision current sensor

Details High precision current sensor High precision current sensor

2007-04-17

2007-04-17

Nguyen, Ha Tran (Department: 2829)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Magnetic saturation

Reexamination Certificate

active

11185750

ABSTRACT:
A current sensor for measuring an electric current flowing through a current bus bar includes: a magnetic core with an opening, through which the current bus bar passes with a predetermined interval; and a first magnetic sensor for detecting magnetic flux density in the magnetic core, the magnetic flux density generated by the electric current passing through the current bus bar. The magnetic core has a first gap and a second gap. The first magnetic sensor is disposed in the first gap. The second gap is capable of preventing magnetic saturation of the magnetic core.

REFERENCES:
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patent: 6184679 (2001-02-01), Popovic et al.
patent: A-2002-286764 (2002-10-01), None
patent: A-2002-303642 (2002-10-01), None
patent: A-2002-350470 (2002-12-01), None
patent: A-2003-167009 (2003-06-01), None
patent: A-2004-245776 (2004-09-01), None
U.S. Appl. No. 11/110,839, filed Apr. 21, 2005, Itoh.

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