论文信息 - Pressure Sensitive Paint response to a step pressure change

Pressure Sensitive Paint response to a step pressure change

An experimental characterization of the response of typical Pressure Sensitive Paint (PSP) formulations to a step change in pressure is presented. The time response of the PSP coatings is dependent on the diffusion of oxygen through the PSP hinder material. This diffusion process is best characterized by a two-term exponential decay function representing a complex first order dynamic system. In contrast a standard pressure transducer responds as a second order dynamic system. The two-exponential curve fit provides a convenient way to compare the time response of different PSP formulations. A mass diffusion model of the PSP response is also presented which is capable of predicting the time response of PSP layers. L-'

John Abbitt | Martin Morris | Bruce Carroll | Erik W. Lukas

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