Principal component analysis of dual-luminophore pressure/temperature sensitive paints
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Multi-luminophore pressure/temperature sensitive paints are investigated using principal component analysis of the spectral emission from the coatings. Two formulations are investigated. The first consists of Ru (4,7-diphenylphenanthroline) dichloride (Ruphen) and Coumarin-7 luminophores. The second coating contains Pt(II) meso-tetrakis (pentafluorophenyl) porphine (PtTFPP) and diethyloxadicarbocyanine iodide (DOCI). The principal component analysis revealed that the Ruphen/Coumarin-7 coating requires three fundamental spectra or modes to adequately model the coating emission characteristics. The PtTFPP/DOCI coating was modeled adequately with only two modes. Analysis of the PtTFFP/DOCI coating also revealed that a temperature independent calibration of the pressure sensing function could be developed. The requirement for a wind-off reference image was also eliminated.
Keywordspressure sensor temperature sensor luminescent coating.
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- Bencic, T., Temperature Correction for Pressure-Sensitive Paint, NASA Tech Briefs, Jan, (2000), 50–51.Google Scholar
- Carroll, B. F., Hubner, J. P., Schanze, K. S., Bedlek, J. and Morris, M., Pressure and Temperature Measurements with a Dual-Luminophore Coating, 18th ICIASF Record (Toulouse, France, June 13, 1999), 18.1–18.8.Google Scholar
- Hubner, J. P., Carroll, B. F. and Schanze, K. S., Temperature Compensation Model for Pressure-Sensitive Paint, FEDSM97-3470, ASME Fluids Engineering Division Summer Meeting, (Jun. 1997).Google Scholar