Compact fiber optic sensors and method of making same

Details Compact fiber optic sensors and method of making same Compact fiber optic sensors and method of making same

G - Physics

02

B

G02B 6/10 (2006.01) G01D 5/26 (2006.01) G01K 11/12 (2006.01) G02B 5/18 (2006.01)

Patent

CA 2762084

A compact, optically double-ended sensor probes with at least one 180° bend provided in the optical fiber in close proximity to a fiber Bragg grating temperature sensor suspends the optical fiber within a casing in such a way that the expansion and contract of the probe casing will not materially influence the temperature reading of the fiber Bragg grating by adding time varying or temperature varying stress components.

Sonde capteur compacte à deux extrémités optiques comportant une fibre optique présentant au moins une courbure à 180° à proximité immédiate d'un capteur de température à réseau de Bragg fibré. La sonde capteur maintient la fibre optique en suspension à l'intérieur d'une gaine de manière à ce que la dilatation et la contraction de la sonde n'ait aucune influence matérielle sur le relevé de température du réseau de Bragg fibré, grâce à l'ajout de composantes de contrainte variant en fonction du temps ou de la température.

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