Inclinometer with bragg grating

G - Physics – 01 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G01C 9/12 (2006.01) G01B 11/16 (2006.01) G01B 11/26 (2006.01)

Patent

CA 2405514

The invention concerns an inclinometer with Bragg grating, comprising an upper part (4) and a lower part (6) forming a pendulum hanging from the upper part by articulation (8), at least two optical fibre portions (20, 22) placed on either side of the latter, the ends of each portion being fixed to two parts, each portion having been previously tensioned between said two parts, and at least a Bragg grating (24) in one of the portions. Any variation of inclination of a structure whereto the upper part is fixed induces a load on the grating which then modifies a light propagated in the portion where it is located. The variation in inclination is determined on the basis of the modified light. The invention is useful for monitoring civil engineering structures.

Cet inclinomètre comprend une partie supérieure (4), une partie inférieure (6) formant un pendule suspendu à la partie supérieure par une articulation (8), au moins deux portions de fibre optique (20, 22) placées de part et d'autre de cette dernière, les extrémités de chaque portion étant fixées aux deux parties, chaque portion étant préalablement mise en tension entre ces dernières, et au moins un réseau de Bragg (24) dans l'une des portions. Toute variation d'inclinaison d'une structure à laquelle est fixée la partie supérieure induit une contrainte sur le réseau qui modifie alors une lumière se propageant dans la portion où il se trouve. La variation d'inclinaison est déterminée à partir de la lumière modifiée. L'invention s'applique notamment à la surveillance d'ouvrages d'art.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Inclinometer with bragg grating does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Inclinometer with bragg grating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inclinometer with bragg grating will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1393482

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.