Reconstruction of normal surface velocity from measurement of acoustically induced vibration of a thin membrane

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F12%3A00198133" target="_blank" >RIV/68407700:21230/12:00198133 - isvavai.cz</a>
Result on the web
<a href="http://www.euronoise2012.cz" target="_blank" >http://www.euronoise2012.cz</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Reconstruction of normal surface velocity from measurement of acoustically induced vibration of a thin membrane
Original language description
This paper deals with the theoretical study of extension of the laser scanning vibrometer measurement for reconstruction of acoustic quantities by Nearfield Acoustical Holography (NAH). This approach could be applied in a situation where the direct measurement of source vibration is complicated or impossible. A thin rectangular membrane with reflective coating is inserted in the near field of the source and its normal velocity is measured by a laser scanning vibrometer. Using a model equation considering acoustically induced vibration of the membrane, the original sound field radiated by the source is calculated and used for reconstruction of the normal source velocity. The presented paper presents preliminary theoretical results obtained in a mathematical model of the real situation.
Czech name
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Czech description
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Project
<a href="/en/project/GAP101%2F10%2F2383" target="_blank" >GAP101/10/2383: Active structural acoustic control of sound transmission through thin walls</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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