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Title: Method and apparatus for optical temperature measurements

Abstract

A method and apparatus are provided for remotely monitoring temperature. Both method and apparatus employ a temperature probe material having an excitation-dependent emission line whose fluorescence intensity varies directly with temperature whenever excited by light having a first wavelength and whose fluorescence intensity varies inversely with temperature whenever excited by light having a second wavelength. Temperature is measured by alternatively illuminating the temperature probe material with light having the first wavelength and light having the second wavelength, monitoring the intensity of the successive emissions of the excitation-dependent emission line, and relating the intensity ratio of successive emissions to temperature.

Inventors:
 [1];  [1]
  1. Livermore, CA
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
866518
Patent Number(s):
US 4729668
Assignee:
United States of America as represented by United States (Washington, DC)
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; optical; temperature; measurements; provided; remotely; monitoring; employ; probe; material; excitation-dependent; emission; line; fluorescence; intensity; varies; directly; whenever; excited; light; wavelength; inversely; measured; alternatively; illuminating; successive; emissions; relating; ratio; temperature probe; temperature measurements; emission line; fluorescence intensity; optical temperature; temperature measurement; remotely monitoring; probe material; intensity varies; monitoring temperature; temperature measure; intensity ratio; /374/

Citation Formats

Angel, S Michael, and Hirschfeld, Tomas B. Method and apparatus for optical temperature measurements. United States: N. p., 1988. Web.
Angel, S Michael, & Hirschfeld, Tomas B. Method and apparatus for optical temperature measurements. United States.
Angel, S Michael, and Hirschfeld, Tomas B. Fri . "Method and apparatus for optical temperature measurements". United States. https://www.osti.gov/servlets/purl/866518.
@article{osti_866518,
title = {Method and apparatus for optical temperature measurements},
author = {Angel, S Michael and Hirschfeld, Tomas B},
abstractNote = {A method and apparatus are provided for remotely monitoring temperature. Both method and apparatus employ a temperature probe material having an excitation-dependent emission line whose fluorescence intensity varies directly with temperature whenever excited by light having a first wavelength and whose fluorescence intensity varies inversely with temperature whenever excited by light having a second wavelength. Temperature is measured by alternatively illuminating the temperature probe material with light having the first wavelength and light having the second wavelength, monitoring the intensity of the successive emissions of the excitation-dependent emission line, and relating the intensity ratio of successive emissions to temperature.},
doi = {},
url = {https://www.osti.gov/biblio/866518}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

Patent:

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