Electricity: measuring and testing – Magnetic – Magnetometers
Reexamination Certificate
2006-03-21
2006-03-21
Ledynh, Bot (Department: 2862)
Electricity: measuring and testing
Magnetic
Magnetometers
C324S249000
Reexamination Certificate
active
07015691
ABSTRACT:
In a weak-magnetic field sensor a rectangular ring-shaped magnetic core is wound by exciting circuit patterns and detecting circuit patterns, and weak-magnetic field sensors are implemented in x-axis and y-axis directions, respectively, to precisely calculate azimuth, thereby sensing a weak-magnetic field having a strength similar to that of earth's magnetic field. The sensor includes a magnetic core having first and second cores connected in parallel to each other; exciting coils wound around the first and second cores, respectively, to supply alternating excitation current to the magnetic core; and a detecting coil alternately arranged together with the exciting coils on the same surfaces on which the exciting coils are formed, and wound around the first and second cores, in order to detect variation of magnetic fluxes generated in the magnetic core.
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Choi Sang-On
Choi Won-Youl
Kang Jang-Kyu
Kang Myung-Sam
Gottlieb Rackman & Reisman P.C.
Ledynh Bot
Samsung Electro-Mechanics Co., LTD
Whittington Kenneth J
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