Electricity: measuring and testing – Magnetic – Magnetometers
Reexamination Certificate
2007-05-01
2007-05-01
Patidar, Jay M. (Department: 2862)
Electricity: measuring and testing
Magnetic
Magnetometers
C324S249000
Reexamination Certificate
active
10228965
ABSTRACT:
A fluxgate sensor is integrated in a printed circuit board. The fluxgate sensor has two bar-type(or rectangular-ring shaped) soft magnetic cores to form a closed magnetic path on a printed circuit board and an excitation coil in the form of a metal film is wound around the two bar-type soft magnetic cores either in a united structure that winds the two bar-type soft magnetic cores altogether, or in a separated structure that winds the two bar-type soft magnetic cores respectively, both in a pattern of number ‘8’. A pick-up coil is mounted on the excitation coil, either winding the two bars altogether, or respectively, in a solenoid pattern. The fluxgate sensor integrated in the printed circuit board can be mass-produced at a cheap manufacturing cost. The fluxgate sensor also can be made compact-sized, and at the same time, is capable of forming a closed-magnetic path. As a result, flux leakage is minimized, and the fluxgate sensor has a high sensitivity as it detects the magnetic field through a variable driving.
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Choi Sang-on
Choi Won-youl
Kang Myung-sam
Koh Byeong-cheon
Na Kyung-won
Patidar Jay M.
Samsung Electro—Mechanics Co., Ltd.
Sughrue & Mion, PLLC
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