Frequency-Response Characteristics of Polymer/Ceramic Pressure-Sensitive Paint

Empirical and analytical means have been used in this work to explore the dynamic response characteristics of polymer/ceramic pressure-sensitive paint. An acoustic resonance tube was used to understand the effect of surface roughness on the frequency response of the polymer/ceramic pressure-sensitive paint coating. Steady-state lifetime measurements were also performed. A model based on diffusion, excited-state-luminophore population dynamics, and attenuation of excitation light was derived and numerically implemented. Inclusion of light attenuation in the model improved the accuracy of the simulation and, on comparison with experimental data, was used to obtain characteristic parameters of the paint coating.

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