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.
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Bruce F. Carroll: He received his B.S. degree in Mechanical Engineering from Texas A&M University in 1982 and his Ph.D. in Mechanical Engineering from the University of Illinois at Urbana-Champaign in 1988. He is currently an Associate Professor in the Department of Aerospace Engineering, Mechanics and Engineering Science at the University of Florida. His research interests include optical flow diagnostics applied to compressible and incompressible flows.
James Paul Hubner: He received his B.S. degree in Aerospace Engineering from the University of Florida in 1990 and his Ph.D. in Aerospace Engineering from the Georgia Institute of Technology in 1995 as an Office of Naval Research Graduate Fellow. He is currently the chief research engineer of AeroChem Corporation, a small engineering consulting company, and an adjunct assistant professor in the Department of Aerospace Engineering, Mechanics & Engineering Science at the University of Florida. His research and teaching interests are in experimental fluid and solid mechanics and more recently have focused on luminescent-based measurement techniques.
Kirk S. Schanze: He received his B.S. degree in Chemistry from Florida State University in 1979 and his Ph.D. in Physical Organic Chemistry from the University of North Carolina at Chapel Hill in 1984. He then spent a 2 year period as a Miller Fellow at the University of California at Berkeley before joining the Faculty of the Chemistry Department at the University of Florida in 1986. He is currently a Professor of Chemistry at UF and his research interests focus on the optical properties of organic and organometallic materials.
Joanne Bedlek-Anslow: She received her B.S. degree in Chemistry from Loyola University in Chicago in 1995. After spending a year in Italy studying Italian, Joanne began her graduate studies in Chemistry at the University of Florida. She completed her Ph.D. degree in 1999 with an emphasis on materials organic chemistry. She is currently working as a staff scientist at DuPont company in Columbia, SC. Her research interests are in the area of photoluminescence of materials with applications to temperature and pressure sensitive paints.
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Carroll, B.F., Hubner, J.P., Schanze, K.S. et al. Principal component analysis of dual-luminophore pressure/temperature sensitive paints. J Vis 4, 121–129 (2001). https://doi.org/10.1007/BF03182565
- pressure sensor
- temperature sensor
- luminescent coating.