Measuring and testing – With fluid pressure – Leakage
Patent
1996-04-10
1997-09-02
Brock, Michael
Measuring and testing
With fluid pressure
Leakage
405 54, G01M 304, G01M 338
Patent
active
056634900
ABSTRACT:
A system for detecting the position of a break in a water-barrier sheet placed in a waste disposal facility for isolating wastes from the ground of the waste disposal facility includes at least one optical fiber laid in a predetermined pattern between the ground of the waste disposal facility and the water-barrier sheet and constituting a temperature sensor capable of detecting a change in temperature caused when it is flooded with leakage water flowing out from a break in the water-barrier sheet at a temperature elevated under the effect of heat generated during biodegradation of the organic substances contained in the wastes, and a temperature measuring instrument connected to said optical fiber for detecting the position of the break in the water-barrier sheet via detection of the temperature change by said temperature sensor composed of said optical fiber.
REFERENCES:
patent: 3375702 (1968-04-01), Birman
patent: 3383863 (1968-05-01), Berry
patent: 5028146 (1991-07-01), Wada
patent: 5155356 (1992-10-01), Peters et al.
patent: 5272910 (1993-12-01), Everett et al.
Brock Michael
Daito Kogyo Co., Ltd.
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