1990
DOI: 10.2514/3.25242
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High-temperature phosphor thermometry of rotating turbine blades

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Cited by 71 publications
(21 citation statements)
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“…Thermographic phosphors are usually applied to a surface in a form of insoluble powder or crystal in contrast to polymer-based TSP although both techniques utilize the temperature dependency of luminescence [9]. A family of thermographic phosphors can cover a temperature range from room temperature to 1600 K. Thermographic phosphors have been used for high temperature measurements in hypersonic tunnels [10][11][12][13] and gas turbine engines [14][15][16]. Thermochromic liquid crystals applied to a black surface selectively reflect light and hue varies depending on the surface temperature, which allows measurement of the surface temperature in a relatively narrow range (25-45°C).…”
Section: Introductionmentioning
confidence: 99%
“…Thermographic phosphors are usually applied to a surface in a form of insoluble powder or crystal in contrast to polymer-based TSP although both techniques utilize the temperature dependency of luminescence [9]. A family of thermographic phosphors can cover a temperature range from room temperature to 1600 K. Thermographic phosphors have been used for high temperature measurements in hypersonic tunnels [10][11][12][13] and gas turbine engines [14][15][16]. Thermochromic liquid crystals applied to a black surface selectively reflect light and hue varies depending on the surface temperature, which allows measurement of the surface temperature in a relatively narrow range (25-45°C).…”
Section: Introductionmentioning
confidence: 99%
“…This technique exploits the temperature-dependent light emission (phosphorescence) characteristics of rare-earth-doped ceramic phosphors. An extensive review of the phosphorescence technique is provided in Reference [10] while several publications are available which report on various applications of the technique in a range of environments including IC engines [10][11][12][13] and gas turbines [14,15]. The principal advantages of the phosphorescence technique are that it provides non-intrusive and emissivity-independent wall temperature measurements.…”
Section: Laser-induced Phosphorescence Thermographymentioning
confidence: 99%
“…phosphorescence decay is longer than the PM collection time (i.e., rotation timescale c ), it will clearly induce a bias, by reducing the fitting window (Tobin et al 1990). Thus, one must ensure that the phosphorescence decay time P = ln(10) ( being the phosphorescence lifetime) is much smaller than the rotation timescale c to prevent any information losses.…”
Section: Distortion Function Determinationmentioning
confidence: 99%
“…However, the rotating flame holder raises some questions on the data analysis: the classical point-wise laser excitation is likely to fail if the displacement of the moving target during the phosphorescence decay is larger than the typical size of the illuminated area. Several studies on moving surfaces have been reported, and the classical strategy consists in using phosphors with fast decay lifetimes (Mannick et al 1987;Allison et al 1988;Tobin et al 1990;Alden et al 2011). Thus, the object can be considered as a quasi-static object during the collection process.…”
Section: Introductionmentioning
confidence: 99%