Sensor for detecting leaks of corrosive liquid

Details Sensor for detecting leaks of corrosive liquid Sensor for detecting leaks of corrosive liquid

1986-07-11

1987-06-30

Levy, Stewart J.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

340605, 73 40, G01R 2702, G01M 304

Patent

active

046773738

ABSTRACT:
A sensor for detecting leaks of a corrosive liquid is provided comprising a pair of plate electrodes made of a conductive metal which is corroded by the liquid to be detected spaced apart and separated by an inner sheet of an electrically insulating material, the inner sheet having a plurality of through-holes, this entire construction being sealingly encased between a pair of outer insulating sheets, at least one of which has a plurality of through-holes. In use, if a leak occurs the liquid passes through the through-holes in the outer insulating sheet, dissolves a portion of one electrode and passes through the through-holes in the inner sheet to the second electrode, causing a short circuit resulting in a rapid and accurately measurable decrease in the resistance in the circuit and, therefore, detection of the leak.

REFERENCES:
patent: 3564526 (1971-02-01), Butts
patent: 4041771 (1977-08-01), Allan et al.
patent: 4206632 (1980-06-01), Suzuki

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