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EP0081412A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Measuring head for a magnetometer

Assignee: Thales SA
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Filing: 1982-11-26
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Granted: —
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Expires: 2002-11-26
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Abstract

Abstract Translated from French La tête de mesure selon l'invention est divisée en deux sous-ensembles (I,II) autonomes : un premier sous-ensemble (1) comprenant des moyens (100,104,109) d'émission et de détection de lumière polarisée couplé à l'aide d'une fibre (f) à un second sous-ensemble (II) comprenant une couche (103) mince de matériau magnétique au sein duquel l'onde lumineuse transmise par la fibre (f) est guidée. Le couplage avec la fibre (f) s'effectue par la tranche, directement sans éléments optiques intermédiaires, l'extrémité opposée de la couche étant munie d'un miroir (M) de manière à ce que l'onde guidée effectue en aller et retour avant d'être retransmise aux moyens de détection (109) qui mesurent la rotation de la polarisation de la lumière par effet Faraday. The measuring head according to the invention is divided into two autonomous sub-assemblies (I, II): a first sub-assembly (1) comprising means (100,104,109) for transmitting and detecting polarized light coupled using from a fiber (f) to a second sub-assembly (II) comprising a thin layer (103) of magnetic material within which the light wave transmitted by the fiber (f) is guided. The coupling with the fiber (f) is carried out by the wafer, directly without intermediate optical elements, the opposite end of the layer being provided with a mirror (M) so that the guided wave carries out and return before being retransmitted to the detection means (109) which measure the rotation of the polarization of the light by Faraday effect. Application aux magnétomètres. Application to magnetometers.

Inventors

  • 👤 Gérard Doriath
  • 👤 Roger Gaudry

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 20:21
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/02; G01R33/032; G01R33/0322; G02; G02F; G02F1/00; G02F1/01; G02F1/09; G02F1/095

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