Process for demagnetizing components by alternating magnetic fie

Details Process for demagnetizing components by alternating magnetic fie Process for demagnetizing components by alternating magnetic fie

1981-02-12

1983-05-17

Eisenzopf, Reinhard J.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

361267, H01F 1300

Patent

active

043843131

ABSTRACT:
A process for demagnetizing components by subjecting them to the influences of the alternating magnetic field of a coil supplied by an oscillator circuit which includes a capacitor also includes providing a voltage supply to the oscillator at the resonant frequency and thereafter reducing the intensity of the alternating field acting on the components. This can be done in several ways, such as by varying the frequency of the supply voltage or by varying the capacitance connected in circuit with the coil. The process may also be used for calibrating permanent magnets.

REFERENCES:
patent: 2445459 (1948-07-01), Snyder
patent: 3638074 (1972-01-01), Inouye
patent: 3895270 (1975-07-01), Maddox

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