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Title: Optical temperature indicator using thermochromic semiconductors

Abstract

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:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States)
OSTI Identifier:
870343
Patent Number(s):
5499597
Assignee:
Kronberg; James W. (108 Independent Blvd., Aiken, SC 29801)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
DOE Contract Number:  
AC09-89SR18035
Resource Type:
Patent
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/

Citation Formats

Kronberg, James W. Optical temperature indicator using thermochromic semiconductors. United States: N. p., 1996. Web.
Kronberg, James W. Optical temperature indicator using thermochromic semiconductors. United States.
Kronberg, James W. Mon . "Optical temperature indicator using thermochromic semiconductors". United States. https://www.osti.gov/servlets/purl/870343.
@article{osti_870343,
title = {Optical temperature indicator using thermochromic semiconductors},
author = {Kronberg, James W},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}

Works referenced in this record:

Thermochromism of inorganic compounds
journal, December 1968