Pressure sensitive paint (PSP) is a newly-developed optical technique for measuring the continuous pressure field on a model surface. It has been widely studied because of its great advantage of better data productivity than conventional pressure tap measurement and reduced cost and time for pressure measurement. PSP technique has several problems in measurement accuracy due to noise in the measurement system, PSP temperature sensitivity, etc. To solve these problems and apply PSP to large production wind tunnels, PSP testing and data reduction were established through a joint research project with National Aerospace Laboratory in Japan.
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