Phosphor thermometry

B. W. Noel, W. D. Turley, W. Lewis, K. W. Tobin, and D. L. Beshears, Phosphor thermometry on turbine-engine blades and vanes. Proc. 7th Int. Symp. on Temp., Toronto, Canada, 30 April, 1992, American Institute of Physics, Washington, D.C. (1992). 

Fluorescent Coatings for High Temperature Phosphor Thermometry... 

Fluorescent Coatings for High Temperature Phosphor Thermometry Table 3 Binder and phosphor paint survivability results... 

Allison, S.W. Goedeke, S.M. Beshears, D.L. Cates, M.R. Hollerman, W.A. Womack, F.N. Bergeron, N.P. Bencic, T.J. Mercer, C.R. Eldridge, J.I. Advances in high temperature phosphor thermometry for aerospace applications. Proceedings of the 39th AIAA/ASME/SAE/ ASEE Joint Propulsion Conference, 2003 AIAA-2003-4584. 

Phosphor thermometry has been used in a variety of applications from aerospace to manufacturing. The technique becomes indispensable in situations that have large blackbody background, such as combustion, and when the surface is in motion, such as in jet turbines. The technique is also very useful when the surface emissivity varies with time. This technique... 

Previous successful applications led to efforts aimed at measuring the temperatures of surfaces and structures inside turbine engines, particularly those of the rotating blades and the stationary vanes. The history of that research is documented in a series of papers, as shown in Refs. Several other groups have independently applied phosphor thermometry to turbomachinery, and in what follows we provide a synopsis of the work done in this held. 

Several others have also explored turbine engine and other aerospace applications of phosphor thermometry. For instance, Alaruri et al. exposed samples of Y2O3 Eu to the combustion flows in a burner rig. ° The gas velocities in the rig ranged from 245 to 407 m/sec at roughly atmospheric pressure. Data were taken over the range from 400° C to 1000°C with the overall accuracy of the measurements estimated to be 3%. They noted that the phosphor s fluorescence... 

Fig. 4 Phosphor thermometry measured in an exhaust plume of jet engine afterburner.

Fig. 5 Configuration of phosphor thermometry system for galvaneal steel.

K. W. Beshears, D.L. Phosphor thermometry on turbine-engine blades and vanes. In Temperature Its Measurement and Control in Science and Industry, Schooley, J.F., Ed. American Institute of Physics New York, 1992 Vol. 6, Part 2, 1249-1254. 

Inman, K., Wang, X., and Sangeorzan, B. 2010. Design of an optical thermal sensor for proton exchange membrane fuel ceU temperature measurement using phosphor thermometry. Journal of Power Sources 195 4753-4757. 

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