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Primary Examiner: Corbin, John K.
Assistant Examiner: Punter, Wm. H.
Attorney: Hill, Gross, Simpson, Van Santen, Steadman, Chiara & Simpson

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Title: Magneto-optical measuring transducer for very high currents/voltages

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.

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Inventors: Feldtkeller, Ernst (Munich, DT)

Application Number: 505674
Filing Date: 1974-09-13
Publication_date: 1976-09-14
Assignee: Siemens Aktiengesellschaft (Berlin & Munich, DT)
Primary Class(es): 324/96 359/282, 359/324
Other Classes:
US Patent Ref:

3590374	Jun, 1971	Evans et al.	324/96.
3707321	Dec, 1972	Jaecklin	324/96.
3784281	Jan, 1974	Kuse	350/151.

Other Refs: Other References: 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.