Evaluating Thermographic Phosphors in an Operating Turbine Engine

[+] Author and Article Information
B. W. Noel, H. M. Borella

Los Alamos National Laboratory, Los Alamos, NM 87545

W. Lewis, W. D. Turley

EG&G Energy Measurements, Inc., Goleta, CA 93117

D. L. Beshears, G. J. Capps, M. R. Cates, J. D. Muhs, K. W. Tobin

Oak Ridge National Laboratory, Oak Ridge, TN 37831

J. Eng. Gas Turbines Power 113(2), 242-245 (Apr 01, 1991) (4 pages) doi:10.1115/1.2906554 History: Received February 15, 1990; Online April 24, 2008


The results of a field test in a commercial turbine engine showed that we can remotely measure the temperature of engine components in operating engines using thermographic phosphors. The remote-measurement method exploits the temperature dependence of the characteristic decay time of the laser-induced fluorescence of thermographic phosphors. This paper summarizes recent work leading up to and including a successful test of the thermographic-phosphor method in an operating turbine engine.

Copyright © 1991 by The American Society of Mechanical Engineers
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