PAGE, acoustic intensity
Acoustic intensity, energy densities, and impedance are useful quantities when considering sound fields. Calculating these energy quantities relies on measurements of acoustic pressure and particle velocity. Pressure and particle velocity can be directly measured, but direct measurements of particle velocity are difficult to make, and are normally inaccurate. A more common and effective way to find particle velocity is to estimate it using pressure measurements from two closely-spaced microphones. The traditional way of estimating particle velocity is severely limited by frequency. The PAGE method, developed at Brigham Young University, extends the frequency bandwidth at which accurate estimations can be made. A rigorous investigation of the performance of the PAGE method in a one-dimensional plane wave tube environment is made. Results from this investigation show that the PAGE method outperforms the traditional method substantially for all energy quantities. [Work supported by the National Science Foundation Grant #1461219.]
BYU ScholarsArchive Citation
Hawks, Daxton A., "Performance of Phase and Amplitude Gradient Estimator Method for Calculating Energy Quantities in a Plane-Wave Tube Environment" (2016). Student Publications. 191.
Physical and Mathematical Sciences
Physics and Astronomy
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