Method and apparatus for dynamic magnetic field neutralization

Details Method and apparatus for dynamic magnetic field neutralization Method and apparatus for dynamic magnetic field neutralization

1990-10-03

1991-12-17

Pascal, Robert J.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Pulse storing

H01J 2906

Patent

active

050737449

ABSTRACT:
A method and apparatus for controlling the magnetic field value within a specified volume, subject to an external ambient magnetic field, wherein the method and apparatus employ a plurality of magnetic field sensors and an associated plurality of coils, together with an electrical drive circuit connecting each of the sensors to the associated coil and including a feedback coupling the output of each of said coils to all of said sensors.

REFERENCES:
patent: 2925524 (1960-02-01), Heil
patent: 3757154 (1973-09-01), Okita et al.
patent: 4380716 (1983-04-01), Romeo et al.
patent: 4963789 (1990-10-01), Buhler

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