Packaged optical sensors on the side of optical fibres

Details Packaged optical sensors on the side of optical fibres Packaged optical sensors on the side of optical fibres

G - Physics

01

D

G01D 5/353 (2006.01) G01K 11/32 (2006.01)

Patent

CA 2471401

The present invention concerns an optical sensor located on the side of an optical fibre. An optical fibre having two opposite ends, a core and a cladding and at least one sensing area is disclosed. Each of the sensing areas is located between the two opposite ends and each has a longitudinal and radial portion of the fibre that has been removed and replaced by a sensing material. The luminescent light is thus representative of a parameter to be measured, such as temperature. Placing the sensing material in a side portion of the fibre increases the sensitivity of the sensor, particularly when it comes to temperature measurement in vivo.

La présente invention concerne un capteur optique disposé sur le côté d'une fibre optique. L'invention concerne également une fibre optique comportant deux extrémités opposées, une âme et une gaine, ainsi qu'au moins une zone de détection. Chacune des zones de détection est située entre les deux extrémités opposées, une partie longitudinale et radiale de la fibre ayant été enlevée et remplacée par un matériau de détection. Ainsi, la lumière luminescente est représentative d'un paramètre à mesurer, tel que la température. La mise en place du matériau de détection dans une partie latérale de la fibre permet d'augmenter la sensibilité du capteur, notamment lors d'une mesure de température in vivo.

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