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EP0004321A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method for magneto-optical current measuring

Assignee: Siemens AG
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Filing: 1979-03-08
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Granted: —
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Expires: 1999-03-08
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Abstract

Abstract Translated from German Es wird ein Verfahren zur magnetooptischen Strommessung mit einem linear polarisierten Lichtstrahl, dessen Faraday-Drehung dem zu messenden Strom entspricht. angegeben, das auch für große Drehwinkel anwendbar ist. Aus dem Meßsignal werden die Grundfrequenz und die erste Oberwelle des Modulationssignals getrennt herausgefiltert. Nach der Demodulation wird der Quotient aus den Intensitäten der beiden Signalanteile gebildet. Das Verfahren wird verwendet zur Strommessung in Hochspannungsanlagen. There is a method for magneto-optical current measurement with a linearly polarized light beam, the Faraday rotation of which corresponds to the current to be measured. specified, which is also applicable for large angles of rotation. The fundamental frequency and the first harmonic of the modulation signal are filtered out separately from the measurement signal. After demodulation, the quotient is formed from the intensities of the two signal components. The method is used for current measurement in high-voltage systems.

Inventors

  • 👤 Alfred Dr. Papp

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-22 19:39
CPC Classifications
G; G01; G01R; G01R15/00; G01R15/14; G01R15/24; G01R15/245; G01R15/246

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References Cited (Backward Citations)

US2974561A Cited
FR1252209A Cited
US3312141A Cited
US3483388A Cited
DE2236251B2 Cited

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