Patent ID: 8927924
Filing Date: 2015-01-06
Classification: G01M,G01N

Abstract:
1. An underwater leak detector, comprising: a sensor head coupled to an end of at least one optical cable; a light source optically coupled to the sensor head via one the at least one optical cable, the light source being operable to generate excitation light that emerges from the sensor head in the shape of a cone; a detector optically coupled to receive detection light from the sensor head via the at least one optical cable, the detector being operable to detect fluorescence light in the detection light; a signal processing unit coupled to the detector and operable to signal a leak condition responsive to an intensity of the fluorescence light exceeding a threshold; and a fluid-tight enclosure enclosing at least the light source, the detector, and the signal processing unit, wherein the at least one optical cable is positioned between the fluid-tight enclosure and the sensor head.