G - Physics – 01 – L
Patent
G - Physics
01
L
G01L 9/00 (2006.01) G01L 11/02 (2006.01)
Patent
CA 2500274
The invention relates to a Bragg grating pressure sensor which is intended primarily for use in the chemical industry. The inventive sensor comprises, for example, an optical fibre (10) and a Bragg grating (14) which is formed in a segment (14) of the aforementioned fibre, said segment being subjected to pressure P. The invention also comprises lateral means (20) for supporting the aforementioned segment. Moreover, said segment of the fibre is prestressed in compression, the value of which is low compared to the measuring range of the sensor.
Capteur de pression à reseau de Bragg. Ce capteur, qui s'applique notamment à l'industrie chimique, comprend par exemple une fibre optique (10) et un réseau de Bragg (14) formé dans une portion (14) de la fibre, qui est soumise à la pression (P), et des moyens (20) de maintien latéral de cette portion. Cette portion et soumise à une précontrainte en compression dont, la valeur est faible devant l'étendue de mesure du capteur.
Commissariat A. L'energie Atomique
Goudreau Gage Dubuc
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