Corrosive environment sensor, corrosive environment measuring ap

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

1994-09-21

1996-09-17

Snay, Jeffrey R.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Corrosion tester

73799, 73859, 364508, C01N 1700

Patent

active

055565964

ABSTRACT:
A corrosive environment sensor comprises an elongate metal member having a pair of beam portions, each extending in a length direction between first and second ends of the metal member, and having a crack growth portion formed therein and extending in the length direction of the metal member from a crack starting end toward the second end, wherein the crack starting end is at an intermediate position between the first and second ends of the metal member and is between the pair of beam portions, a changeable load member having an expansible chamber disposed between the beam portion around the first end of the metal member and a means for supplying pressurized fluid to the expansible chamber. The changeable load member applies a load to the crack growth portion and the means for supplying pressurized fluid to the expansible chamber is responsible for ensuring that the displacement of the beam portions is accomplished in such a manner so as to provide a constant stress intensity factor at a crack growing point.

REFERENCES:
patent: 3657921 (1972-04-01), Lang
patent: 4924708 (1990-05-01), Solomon et al.

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