TY - GEN
T1 - Development of lifetime imaging system for pressure-sensitive paint
AU - Mitsuo, Kazunori
AU - Egami, Yasuhiro
AU - Suzuki, Hitoshi
AU - Mizushima, Hiroshi
AU - Asai, Keisuke
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2002
Y1 - 2002
N2 - We developed a lifetime imaging system to simultaneously measure pressure and temperature from the luminescent decay of PtTFPP. Analysis of PtTFPP-PSP by a streak camera showed that this PSP exhibited a transient behavior after pulsed excitation, similar to that suggested by Smoluchowski. Utilizing this characteristic, one could determine pressure and temperature by taking three images with different gated times. We built a lifetime imaging system composed of a pulsed laser and an intensified CCD (ICCD) camera. The three gated times of the ICCD were determined referring to the streak camera data. The performance of this system was evaluated over the wide range of pressure and temperature using a PSP-coated flat plate as a test article. As a result, we found that we could fit the ratios of the gated images with a smooth function of pressure and temperature. This allowed us to reconstruct pressure and pressure fields from the measured images. The accuracy of the lifetime imaging system was determined for various pressures and temperatures, and, as a verification test, pressure and temperature patterns induced by a sonic impingement flow were visualized by using this system.
AB - We developed a lifetime imaging system to simultaneously measure pressure and temperature from the luminescent decay of PtTFPP. Analysis of PtTFPP-PSP by a streak camera showed that this PSP exhibited a transient behavior after pulsed excitation, similar to that suggested by Smoluchowski. Utilizing this characteristic, one could determine pressure and temperature by taking three images with different gated times. We built a lifetime imaging system composed of a pulsed laser and an intensified CCD (ICCD) camera. The three gated times of the ICCD were determined referring to the streak camera data. The performance of this system was evaluated over the wide range of pressure and temperature using a PSP-coated flat plate as a test article. As a result, we found that we could fit the ratios of the gated images with a smooth function of pressure and temperature. This allowed us to reconstruct pressure and pressure fields from the measured images. The accuracy of the lifetime imaging system was determined for various pressures and temperatures, and, as a verification test, pressure and temperature patterns induced by a sonic impingement flow were visualized by using this system.
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U2 - 10.2514/6.2002-2909
DO - 10.2514/6.2002-2909
M3 - Conference contribution
AN - SCOPUS:85088343639
SN - 9781624101120
T3 - 22nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference
BT - 22nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference
PB - American Institute of Aeronautics and Astronautics Inc.
T2 - 22nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference 2002
Y2 - 24 June 2002 through 26 June 2002
ER -