Patent ID: 8316694
Filing Date: 2012-11-27
Classification: E02B,G01B,G01M

Abstract:
1. A device for detecting and locating fluid leakage from a hydraulic work, the device comprising: a geotextile fabric made of yarns or fibers; at least one first optical cable in contact with said geotextile and formed by a protective tube within which at least one multimode optical fiber is freely placed, said multimode optical fiber being suitable for detecting a temperature variation difference of 0.1° C. and for transmitting a signal that is modified when a variation of the temperature is detected, wherein the at least one first optical cable is disposed at a surface of the geotextile; and at least one second optical cable formed by a sheath receiving tightly at least one monomode optical fiber suitable for detecting a deformation of the geotextile and for transmitting a signal that is modified when the deformation is detected, wherein said second optical cable is bonded to the geotextile.