Electricity: measuring and testing – Magnetic – Magnetometers
Patent
1995-06-30
1997-08-26
Snow, Walter E.
Electricity: measuring and testing
Magnetic
Magnetometers
324251, 324226, 377 12, G01R 3302, G01R 3306, G01N 2772, G06M 1102
Patent
active
056613989
ABSTRACT:
A circuit for resolving a magnetic field, including a first channel including a first magnetic field sensor, a first amplifier coupled to and receiving an output from said first magnetic field sensor, and a first three band detector coupled to and receiving an output from said first amplifier. The first three band detector provides a first two bit output. A second channel includes a second magnetic field sensor, a second amplifier coupled to and receiving an output from said second magnetic field sensor, and a second three band detector coupled to and receiving an output from said second amplifier. The second three band detector provides a second two bit output. The first and second magnetic field sensors are arranged orthogonally to one another such that said first and second two bit outputs resolve the magnetic field into eight bearings.
REFERENCES:
patent: 3905121 (1975-09-01), Takeda et al.
patent: 4371837 (1983-02-01), Sieverin
patent: 4482255 (1984-11-01), Oygax et al.
patent: 4530105 (1985-07-01), Rabinowitz
patent: 4991126 (1991-02-01), Reiter
patent: 5241270 (1993-08-01), Ng
Sham Ka Yiu
Wong Philip Lim-Kong
Acumen Inc.
Snow Walter E.
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