Development of simultaneous measurement of pressure and temperature by PSP and TSP arranged in a micro-dot pattern

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The simultaneous measurement of pressure and temperature distributions on a model surface has been realized by PSP (Pressure-Sensitive Paint) and TSP (Temperature-Sensitive Paint) arranged in a micro-dot pattern. A conventional mixed PSP/TSP paint cannot work well because the mixed PSP and TSP luminophores cause mutual interference. In this study, PSP and TSP were separately printed on a model surface in a micro-dot pattern using inkjet technology to avoid the mutual interference between sensor luminophores. This novel complex PSP/TSP paint enables us to simultaneously measure pressure and temperature distribution on a model surface with high-spatial resolution.