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Paint Glows Under Pressure

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Kevin Robinson

Researchers at Purdue University have mixed fluorescent marker molecules and binders to create paints that indicate changes in temperature and pressure by changing the intensity of their fluorescence. The technique has advantages over conventional point measurement systems because it is nonintrusive and measures an entire painted surface. Applications include wind tunnel testing as well as engine and rotor testing. Temperature- and pressure-sensitive paints on rotors turning at 17,800 rpm indicate a wide temperature difference and the presence of a shock wave, which can decrease engine...Read full article

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    Published: August 1998
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