What is it about?
The development and characterization of a miniaturized microphone designed for use in experiments to study the generation and propagation of sound are described. The sensor responds to acoustic signals and other pressure fluctuations such as those on the surface of an airframe.
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Why is it important?
The microphone / fluctuating pressure sensor is designed for the specific application of measuring airframe noise generation from scale model airframes. It is a precision measurement solution capable of high-quality measurements up to 120 kHz.
Perspectives
This microphone is the culmination of many years of research and development towards providing the ability to create high density, small aperture, microphone arrays for high fidelity imaging of noise sources in scale model wind tunnel tests.
James Underbrink
Read the Original
This page is a summary of: A Miniaturized, Flush-Mount, IEPE MEMS Piezoelectric Pressure-Field Microphone for Aeroacoustic Applications, May 2024, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/6.2024-3061.
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