Oscillator/driver circuit for fluxgate magnetometer

Details Oscillator/driver circuit for fluxgate magnetometer Oscillator/driver circuit for fluxgate magnetometer

1980-06-06

1983-05-17

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Magnetometers

331112, 307282, 307275, G01R 3304, H03K 330

Patent

active

043842542

ABSTRACT:
A low power expenditure oscillator/driver circuit including a transistor drive and control windings connected thereto and being operatively wound on a magnetic core suitable for use in a fluxgate magnetometer is disclosed. Its low power expenditure feature is provided, inter alia, by including an additional resistor in the base circuit of the transistor portion thereof so as to lengthen the base current pulses which permits their termination to be controlled by saturation of the magnetic core.

REFERENCES:
patent: 2957145 (1960-10-01), Bernalien
patent: 3649908 (1972-03-01), Brown
patent: 3681711 (1972-08-01), Hanby

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