Optical heat flux gauge

Thermal measuring and testing – Heat flux measurement

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Details

374 30, G01K 1700

Patent

active

050447653

ABSTRACT:
A heat flux gauge comprising first and second thermographic phosphor layers separated by a layer of a thermal insulator. The gauge may be mounted on a surface with the first thermographic phosphor in contact with the surface. A light source is directed at the gauge, causing the phosphors to luminesce. The luminescence produced by the phosphors is collected and its spectra analyzed in order to determine the heat flux on the surface. First and second phosphor layers must be different materials to assure that the spectral lines collected will be distinguishable.

REFERENCES:
patent: 3939706 (1976-02-01), Pinson
patent: 4309901 (1982-02-01), Rolinski
patent: 4568198 (1986-02-01), Szabo et al.
patent: 4577976 (1986-03-01), Hayashi
patent: 4722609 (1988-02-01), Epstein et al.
patent: 4779994 (1988-10-01), Diller
Bruce W. Noel et al., "A Proposed Method for Remote Thermometry and Turbin Engine," Los Alamos National Laboratory Document LA-UR-85-2379 (submitted to AIAA/SAE/ASME 21st Joint Propulsion Conference, Monterey, CA, July 8-10, 1985).
Bruce W. Noel et al., "Proposed Laser-Induced Fluorescence Method for Remote Thermometry in Turbin Engines," Los Alamos National Laboratory document LA-UR-86-1010 (submitted to Journal of Propulsion and Power) (no date).
Bruce W. Noel et al., "The Design and Characterization of a Prototype Optical Heat-Flux Gauge," Los Alamos National Laboratory document LA-11408-MS, Issued Jan. 1989, (submitted at a conference Jun. 7, 1989).

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