Method and apparatus for detecting wear

Details Method and apparatus for detecting wear Method and apparatus for detecting wear

1989-09-25

1991-05-14

Berman, Jack I.

Radiant energy

Invisible radiant energy responsive electric signalling

With means to inspect passive solid objects

25022714, G01M 1108

Patent

active

050158597

ABSTRACT:
A method and apparatus for detecting wear of an article is described. In one embodiment, an optical fiber is wrapped helically around and between inner and outer surfaces of the article, such as a conduit. Increased transmission losses through the fiber are detected to indicate exposure and/or wear of the fiber, thereby indicating wear of the article.

REFERENCES:
patent: 4229613 (1980-10-01), Braun
patent: 4449098 (1984-05-01), Nakamura et al.
patent: 4554650 (1985-11-01), Brown et al.
patent: 4735083 (1988-04-01), Tenenbaum
patent: 4884434 (1989-12-01), Satake et al.

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