Electrically balanced fluxgate gradiometers

Details Electrically balanced fluxgate gradiometers Electrically balanced fluxgate gradiometers

1981-05-26

1984-03-27

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Magnetometers

324253, 324345, 33361, G01R 3302, G01R 3304, G01C 1728, G01V 3165

Patent

active

044397321

ABSTRACT:
A gradiometer for measuring magnetic field gradients. The gradiometer is formed by a number of magnetic field sensing devices. Each device has its own axis of sensitivity and produces a signal proportional to the magnetic field strength in the direction of its axis of sensitivity. The devices are mounted so that the different axes of sensitivity are at different angles to each other and so that at least some of the devices are displaced from each other along a common axis. The signals from the devices are combined so as to balance out unwanted components, particularly those due to the earth's magnetic field.

REFERENCES:
patent: 3126510 (1964-03-01), McLaughlin et al.
patent: 3281660 (1966-10-01), Studenick
patent: 3639828 (1972-02-01), Salvi
patent: 3644825 (1972-02-01), Davis, Jr. et al.
patent: 3649908 (1972-03-01), Brown

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