Distributed sensing apparatus

Details Distributed sensing apparatus Distributed sensing apparatus

G - Physics

01

D

G01D 5/353 (2006.01) G01K 11/32 (2006.01) G01L 1/24 (2006.01) G01M 11/00 (2006.01)

Patent

CA 2247293

The current invention is applicable to an optical fibre based distributed sensing system that operates according to the non-linear process of Stimulated Brillouin Scattering (SBS). Such a sensing system that is based upon the Brillouin Optical Time Domain Analysis (BOTDA) technique relies upon the interaction between two lightwaves that have an optical frequency difference that lies in the microwave region. It is important that this frequency difference is tunable and stable, and that at least one of the lightwaves can be pulsed. The current invention describes a system that is capable of achieving these objectives, and can launch both lightwaves into one end of a single optical fibre (that operates as the distributed sensing medium) with minimum loss.

La présente invention porte sur un système de détection réparti à fibres optiques qui utilise le processus non linéaire de la diffusion de Brillouin stimulée. Ce système de détection basé sur la méthode d'analyse temporelle optique de Brillouin utilise l'interaction entre deux ondes lumineuses dont la différence des fréquences se trouve dans le domaine des micro-ondes. Il est important que cette différence de fréquences soit accordable et stable et que l'une des ondes lumineuses au moins puisse être pulsée. La présente invention décrit un système capable d'atteindre ses objectifs qui peut injecter les deux ondes lumineuses dans l'une des extrémités d'une même fibre optique (celle-ci servant de support de détection réparti) avec un affaiblissement minimum.

Affiliated with

Also associated with

Rating

Distributed sensing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1550615