Corrosive environment sensor, corrosive environment measuring ap

Details Corrosive environment sensor, corrosive environment measuring ap Corrosive environment sensor, corrosive environment measuring ap

1993-06-09

1995-01-03

Housel, James C.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Corrosion tester

73799, 73859, 364508, G01N 1700, G01N 1908

Patent

active

053784294

ABSTRACT:
A corrosive environment sensor comprises an elongate member having a pair of elongate beam portions and a crack growth portion formed between the pair of beam portions so as to extend axially, and a wedge inserted between the pair of beam portions, wherein the crack growth portion has width thereof defined by quadratic curves extending axially so as to decrease from an axially intermediate portion of the sensor member to an axially intermediate portion of the crack growth portion and increase from the axially intermediate portion of the crack growth portion toward an end of the sensor member. The quadratic curves each consist of a first circular arc with first radius between the axially intermediate portion of the sensor member and the axially intermediate portion of the crack growth portion and a second circular arc with second radius less than the first radius between the axially intermediate portion of the crack growth portion and around the second end of the sensor member. There are further disclosed a corrosive environment measuring apparatus employing the above-mentioned corrosive environment sensor, and a corrosive environment control system employing the above-mentioned corrosive environment measuring apparatus.

REFERENCES:
patent: 4003246 (1977-01-01), Cain
patent: 4149406 (1979-04-01), Russenberger
patent: 4677855 (1987-07-01), Coffin, Jr. et al.
patent: 4711131 (1987-12-01), Hopkins
patent: 4763528 (1988-08-01), Bouami et al.
patent: 4924708 (1990-05-01), Soloman et al.

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