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Title: Optical temperature indicator using thermochromic semiconductors

A reversible optical temperature indicator utilizes thermochromic semiconductors which vary in color in response to various temperature levels. The thermochromic material is enclosed in an enamel which provides protection and prevents breakdown at higher temperatures. Cadmium sulfide is the preferred semiconductor material. The indicator may be utilized as a sign or in a striped arrangement to clearly provide a warning to a user. The various color responses provide multiple levels of alarm.
Inventors:
Issue Date:
OSTI Identifier:
555591
Assignee:
US Dept. of Energy, Washington, DC (United States) SRS; SCA: 440500; PA: EDB-98:010750; SN: 97001853481
Patent Number(s):
PATENTS-US-A8367605
Application Number:
ON: DE97009526; PAN: 8-367,605; TRN: AHC29802%%152
Contract Number:
AC09-89SR18035
Resource Relation:
Other Information: PBD: 1995
Research Org:
Westinghouse Savannah River Co., Aiken, SC (United States)
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; TEMPERATURE MONITORING; SEMICONDUCTOR MATERIALS; COLOR; TEMPERATURE DEPENDENCE; CADMIUM SULFIDES; DESIGN

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