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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:
 [1]
  1. (108 Independent Blvd., Aiken, SC 29801)
Issue Date:
OSTI Identifier:
870343
Assignee:
Kronberg; James W. (108 Independent Blvd., Aiken, SC 29801) SRS
Patent Number(s):
US 5499597
Contract Number:
AC09-89SR18035
Research Org:
WESTINGHOUSE SAVANNAH RIVER CO
Country of Publication:
United States
Language:
English
Subject:
optical; temperature; indicator; thermochromic; semiconductors; reversible; utilizes; vary; color; response; various; levels; material; enclosed; enamel; provides; protection; prevents; breakdown; temperatures; cadmium; sulfide; preferred; semiconductor; utilized; striped; arrangement; provide; warning; user; responses; multiple; alarm; thermochromic semiconductors; temperature levels; semiconductor material; cadmium sulfide; optical temperature; thermochromic material; utilizes thermochromic; multiple levels; provide multiple; temperature indicator; multiple level; various temperature; /116/252/374/

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