음향 홀로그라피 방법을 이용한 벽면 어드미턴스 측정BEM-based Acoustic Holography for the Measurement of Surface Admittance

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Small specimens taken from their original surfaces have been used to measure surface admittance. This method shows good accuracy, but it requires a large number of specimens to measure the surface admittance of an entire surface. In this paper, we proposed a method to measure in-situ surface admittance by employing BEM-based acoustic holography. The method gives the surface admittance of the surface covered by a microphone array. The BEM-based acoustic holography was employed to reconstruct surface velocity and pressure. The ratio of the surface velocity to the surface pressure gives surface admittance. Simulations and experiments for interior and exterior sound fields verified the proposed method.
Publisher
한국소음진동공학회
Issue Date
1999
Language
KOR
Citation

한국소음진동공학회 99년도 춘계학술대회, pp.748 - 753

URI
http://hdl.handle.net/10203/137318
Appears in Collection
ME-Conference Papers(학술회의논문)
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