Temperature sensing arrangement and method

Details Temperature sensing arrangement and method Temperature sensing arrangement and method

1979-07-16

1981-12-29

Gill, James J.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

73350, G01K 1114, G01K 1118

Patent

active

043076076

ABSTRACT:
An arrangement for sensing temperature changes at an object, specifically within a transformer or the like, is disclosed herein. In one embodiment, this arrangement utilizes as one of its main components a sensor including a solid glass medium which changes in optical density with changes in temperature, a single optical fiber for directing a beam of light into the glass media, a single optical fiber for collecting the light transmitted through the medium, and an optical means for imaging the transmitted light to the collecting fiber. In addition, in this embodiment, the light is caused to pass through the glass medium such that the amount of light reaching the collecting fiber is linearly dependent upon the temperature at the medium with respect to temperatures within a wide range.

REFERENCES:
patent: 2666583 (1954-01-01), Whitney
patent: 3252374 (1966-05-01), Stookey
patent: 3513704 (1970-05-01), Watcher
patent: 3591810 (1971-07-01), Jackson
patent: 3672221 (1972-06-01), Weil
patent: 3960017 (1976-06-01), Romanowski
patent: 4111050 (1978-09-01), Waddoups
patent: 4136566 (1979-01-01), Christensen
patent: 4179927 (1979-12-01), Saaski

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