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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:
Issue Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
555591
Patent Number(s):
8367605
Application Number:
ON: DE97009526; PAN: 8-367,605; TRN: AHC29802%%152
Assignee:
US Dept. of Energy, Washington, DC (United States)
Patent Classifications (CPCs):
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61P - SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
DOE Contract Number:  
AC09-89SR18035
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 1995
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

Citation Formats

Kronberg, J W. Optical temperature indicator using thermochromic semiconductors. United States: N. p., 1995. Web.
Kronberg, J W. Optical temperature indicator using thermochromic semiconductors. United States.
Kronberg, J W. Sun . "Optical temperature indicator using thermochromic semiconductors". United States. https://www.osti.gov/servlets/purl/555591.
@article{osti_555591,
title = {Optical temperature indicator using thermochromic semiconductors},
author = {Kronberg, J 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 = {1995},
month = {1}
}