Data reduction requirements for dual-luminophor pressure/temperature sensitive paints (P/TSP) are explored through the use of principal component analysis. The dual-luminophor coating contains one luminophor which primarily responds to temperature and one which responds to both temperature and pressure. The analysis indicates that a two-factor reduced order model based on two fundamental spectra represents the majority of the luminescence response but cannot properly account for mutual interaction effects between the luminophors. The inclusion of a third factor appears to sufficiently model the mutual interaction effects. This work indicates that P/TSP data reduction procedures based on principal component analysis are promising for improving the accuracy of the measurements. The potential to remove the requirement of a wind-off reference image and to reject high frequency noise is also indicated.
Pressure and temperature measurements with a dual-luminophor coating
1999
8 Seiten
Conference paper
English
Pressure and Temperature Measurements with a Dual-Luminophor Coating
British Library Conference Proceedings | 1999
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