Distributed optical pressure and temperature sensors

G - Physics – 01 – L

Patent

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Details

G01L 11/02 (2006.01) G01K 11/32 (2006.01)

Patent

CA 2728790

Disclosed herein is a carrier for an optical fiber having a plurality of optical sensors located thereon. The carrier has a test section comprising a cavity and at least one geometric discontinuity, wherein in response to a pressure applied to the test section, a stress concentration is formed proximate to the geometric discontinuity, and wherein the optical sensor is adhered to at least a part of the geometric discontinuity. The cavity may be filled with a liquid or a gel. A temperature optical sensor may also be provided adjacent to the pressure optical sensor.

La présente invention concerne une porteuse pour une fibre optique ayant une pluralité de capteurs optiques positionnés dessus. La porteuse a une section de test comprenant une cavité et au moins une discontinuité géométrique, dans laquelle en réponse à une pression appliquée à la section de test, une concentration de contrainte est formée à proximité de la discontinuité géométrique, et dans laquelle le capteur optique est fixé à au moins une partie de la discontinuité géométrique. La cavité peut être remplie dun liquide ou dun gel. Un capteur optique de température peut également être prévu à côté du capteur optique de pression.

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