感圧塗料の温度依存性および時間応答特性に関する研究(流体工学, 流体機械)

概要

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To obtain the time-response and the effect of temperature of the pressure sensitive paints(PSPs), the luminescence intensity of the PSPs is measured in the pressure and wall temperature range of 1〜101.3 kPa and 263〜303 K, respectively. The PSPs studied in the present works are PtOEP, PtTFPP, H_2TFPP, H_2TCPP, H_2TSPP, and H_2TTMAPP; they are painted on a commercially-available porous silica thin-layer chromatography (TLC) plate. The effect of the plate temperature on the pressure measurements is examined, and it is found that H_2TFPP has the smallest temperature sensitivity of 3.5 kPa/K among the paints tested. The time-response of the paints is also investigated by using a shock tube. The change in luminescence caused by the sudden pressure rise due to an incident shock wave is detected by a photomultiplier. Results indicate that the response time is on the order of 20〜40 microseconds. In addition, the contact surface in the shock tube flow provides a method of checking the effect of the sudden change in gas temperature, and it is found that the luminescence intensity is insensitive to this effect.
社団法人日本機械学会の論文
2002-05-25