Morphology of the polymer∕ceramic pressure-sensitive paint formulation.
Dynamic calibration of polymer∕ceramic pressure-sensitive paint with a fluidic oscillator.
Typical calibration of polymer∕ceramic pressure-sensitive paint over a range from vacuum to two atmospheres. Although the response is nonlinear over this broad range, it may be approximated by a linear fit over the small acoustic pressures about ambient conditions.
Experimental setup of the cavity with pressure-sensitive paint.
Analytical solution for the (1,1,0) mode shape in a rectangular cavity. , , , and . Pressure (Pa) is scaled to match the magnitude of experimental results.
Pressure-sensitive paint data for the (1,1,0) mode shape at and . Pressure is expressed in Pascals.
Pressure-sensitive paint data for the (1,1,0) mode shape at and . Three phase-averaged time steps are represented: (a) 0°, (b) 90°, and (c) 180°.
Pressure time-history comparison between pressure-sensitive paint, Kulite pressure transducer measurements, and linear theory. PSP data were taken from one corner of the resonance cavity, and the Kulite transducer was also corner-mounted. Error bars on the PSP data indicate an average uncertainty of .
Difference between Kulite transducer data and linear theory, compared with PSP difference from linear theory.
Vertical cross section of the pressure-sensitive paint data at . The curves represent twelve time steps equally spaced throughout the period, and are sequentially numbered. The node is clearly visible at and exhibits very little motion.
rms pressure data (Pa) as measured by pressure-sensitive paint for the (1,1,0) mode shape.
Theoretical minimum-detectable-level of pressure-sensitive paint, with 100 images averaged.
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