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Title: Optical temperature sensor using thermochromic semiconductors

An optical temperature measuring device utilizes thermochromic semiconductors which vary in color in response to changes in temperature. The thermochromic material is sealed in a glass matrix which allows the temperature sensor to detect high temperatures without breakdown. Cuprous oxide and cadmium sulfide are among the semiconductor materials which provide the best results. The changes in color may be detected visually or by utilizing an optical fiber and an electrical sensing circuit. 7 figs.
Inventors:
Issue Date:
OSTI Identifier:
372591
Assignee:
PTO; SCA: 440500; 440600; PA: EDB-96:145099; SN: 96001644987
Patent Number(s):
US 5,547,283/A/
Application Number:
PAN: 8-332,068
Contract Number:
AC09-89SR18035
Resource Relation:
Other Information: PBD: 20 Aug 1996
Research Org:
Westinghouse Savannah River Co
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; TEMPERATURE MEASUREMENT; MEASURING INSTRUMENTS; DESIGN; OPTICAL SYSTEMS; SEMICONDUCTOR MATERIALS; COPPER OXIDES