Magneto-optical measuring transducer for very high currents/volt

Details Magneto-optical measuring transducer for very high currents/volt Magneto-optical measuring transducer for very high currents/volt

1974-09-13

1976-09-14

Corbin, John K.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Using radiant energy

350151, G01R 1900, G02F 109

Patent

active

039809498

ABSTRACT:
A magneto-optical measuring transducer for use as a Faraday rotator in a device to measure high currents/voltages in response to a magnetic field created by the current to be measured by rotating the direction of polarization of a beam of polarized light characterized by the transducer having a first magnetically saturable part and a second part which has a paramagnetic behavior. The first part preferably consists of yttrium-iron-garnet layer and the second part of a gadolinium-gallium-garnet plate.

REFERENCES:
patent: 3590374 (1971-06-01), Evans et al.
patent: 3707321 (1972-12-01), Jaecklin
patent: 3784281 (1974-01-01), Kuse
Braginski et al., "Domain Structure & Stress in Epitaxial YIG Films", IEEE Trans. on Magnetics, 9-1972, pp. 300-303.
Archer et al., "Magnetically Tunable Microwave Bandstop Filters Using Epitaxial YIG Film Resonators," Jr. of Applied Phys., vol. 41, 3-1970, pp. 1359-1360.
Ito et al., "LPE Films of Bismuth-Substituted Bubble Garnet," IEEE Trans. on Magnetics, 9-1973, pp. 460-463.

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