Fluxgate sensor having adjustable core extending beyond a coil w

Details Fluxgate sensor having adjustable core extending beyond a coil w Fluxgate sensor having adjustable core extending beyond a coil w

1990-03-26

1992-05-19

Wieder, Kenneth A.

Electricity: measuring and testing

Magnetic

Magnetometers

324253, G01R 33022, G01R 3304, G01V 340

Patent

active

051151979

ABSTRACT:
A fluxgate sensor has a coil body defining a bore and an axis. A coil is wound on the coil body around the axis. A ferromagnetic core is located in the bore and extends beyond either end of the coil, to improve the sensitivity of the sensor. The core may be elongate and have a non-circular profile such as a zig zag pattern. In a gradiometer, the core configuration facilitates balancing of two sensors by either radial or axial adjustment of the core.

REFERENCES:
patent: 2390051 (1945-12-01), Barth
patent: 2605344 (1952-07-01), Brattain et al.
patent: 3445928 (1969-05-01), Beynon
patent: 4384253 (1983-05-01), Forster
patent: 4439732 (1984-03-01), Hesterman et al.
patent: 4591788 (1986-05-01), Mohri et al.
patent: 4611171 (1986-09-01), Woods
patent: 4623842 (1986-11-01), Bell et al.

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