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Remote high-temperature insulatorless heat-flux gauge

  • US 5,273,359 A
  • Filed: 11/13/1992
  • Issued: 12/28/1993
  • Est. Priority Date: 04/03/1992
  • Status: Expired due to Fees
First Claim
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1. An optically interrogated gauge for measuring heat flux incident on a surface comprising:

  • a first thermographic phosphor in direct contact with said surface;

    a second thermographic phosphor overlying said first thermographic phosphor;

    light means incident on said first and second thermographic phosphors, for producing first luminescence from said first thermographic phosphor and second luminescence from said second thermographic phosphor;

    collecting means for collecting said first and second luminesces, wherein said first luminescence and said second luminescence are indicative of the temperatures of said first and second thermographic phosphors; and

    computing means connected to said collecting means for determining heat flux on said surface using numerical differences between said temperatures of said first and second thermographic phosphors.

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