Remote high-temperature insulatorless heat-flux gauge

Title: Remote high-temperature insulatorless heat-flux gauge

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Abstract

A remote optical heat-flux gauge for use in extremely high temperature environments is described. This application is possible because of the use of thermographic phosphors as the sensing media, and the omission of the need for an intervening layer of insulator between phosphor layers. The gauge has no electrical leads, but is interrogated with ultraviolet or laser light. The luminescence emitted by the two phosphor layers, which is indicative of the temperature of the layers, is collected and analyzed in order to determine the heat flux incident on the surface being investigated. The two layers of thermographic phosphor must be of different materials to assure that the spectral lines collected will be distinguishable. Spatial heat-flux measurements can be made by scanning the light across the surface of the gauge.

Inventors:

Noel, Bruce W. ^[1]

(Espanola, NM)

Issue Date:: 1993-01-01

Research Org.:: Los Alamos National Laboratory (LANL), Los Alamos, NM

OSTI Identifier:: 869091

Patent Number(s):: 5273359

Assignee:: United States of America as represented by United States (Washington, DC) LANL

DOE Contract Number:: W-7405-ENG-36

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: remote; high-temperature; insulatorless; heat-flux; gauge; optical; extremely; temperature; environments; described; application; thermographic; phosphors; sensing; media; omission; intervening; layer; insulator; phosphor; layers; electrical; leads; interrogated; ultraviolet; laser; light; luminescence; emitted; indicative; collected; analyzed; determine; heat; flux; incident; surface; investigated; materials; assure; spectral; lines; distinguishable; spatial; measurements; scanning; thermographic phosphor; optical heat; flux gauge; spectral line; electrical leads; heat flux; laser light; temperature environments; phosphor layers; sensing media; remote optical; spectral lines; temperature environment; electrical lead; lines collected; thermographic phosphors; heat-flux gauge; flux incident; /374/

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                    Noel, Bruce W. Remote high-temperature insulatorless heat-flux gauge.  United States: N. p., 1993. 
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                    Noel, Bruce W. Remote high-temperature insulatorless heat-flux gauge.  United States.

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                    Noel, Bruce W. Fri .  
        "Remote high-temperature insulatorless heat-flux gauge".  United States.  https://www.osti.gov/servlets/purl/869091.

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@article{osti_869091,

  title        = {Remote high-temperature insulatorless heat-flux gauge},

  author       = {Noel, Bruce W.},

  abstractNote = {A remote optical heat-flux gauge for use in extremely high temperature environments is described. This application is possible because of the use of thermographic phosphors as the sensing media, and the omission of the need for an intervening layer of insulator between phosphor layers. The gauge has no electrical leads, but is interrogated with ultraviolet or laser light. The luminescence emitted by the two phosphor layers, which is indicative of the temperature of the layers, is collected and analyzed in order to determine the heat flux incident on the surface being investigated. The two layers of thermographic phosphor must be of different materials to assure that the spectral lines collected will be distinguishable. Spatial heat-flux measurements can be made by scanning the light across the surface of the gauge.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1993},

  month        = {1}

}

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