High sensitivity saturable core magnetic field sensor with symme

Details High sensitivity saturable core magnetic field sensor with symme High sensitivity saturable core magnetic field sensor with symme

1991-08-01

1992-12-01

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Magnetometers

324254, G01R 3304

Patent

active

051682230

ABSTRACT:
A high sensitivity magnetic field sensor comprises a high permeability magnetic circuit (10) and excitation means (L.sub.e) for periodically saturating the magnetic circuit. Two identical windings (L.sub.1, L.sub.2) are symmetrically wound around symmetrical parts (A, B) of the magnetic circuit. Identical first and second capacitors (C.sub.1, C.sub.2) are respectively connected to the terminals of the windings. The voltages on the windings determine the value of the magnetic field.

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Russell et al., "Characteristics of the Capacitively Loaded Flux Gate Sensor", IEEE Transactions on Magnetics, vol. MAG-19, No. 2, Mar. 1983, pp. 126-130.

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