Possibility of ESPI visualization of sound pressure fields
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61384984%3A51110%2F10%3A%230000430" target="_blank" >RIV/61384984:51110/10:#0000430 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Possibility of ESPI visualization of sound pressure fields
Original language description
Electronic speckle pattern interferometers (ESPI) are prominent helping tools for non contact observations of movements of an object surface. Their functionality is based on speckles, which are products of the interference effect between both the laser beams scattered from separate unevenness of the object rough surface and the reference beam originated from the same laser source. This method is applicable on rough surfaces of solids. In the case of acoustic fields the air particles don?t give speckle patterns. Also in this case ESPI visualization can be used, but based on a principle of changes in the air refractive index when air pressure is changed. The aim of this contribution is to explain basic know-how and possibilities of ESPI visualizations ofa sound pressure distribution in a defined space. The practical output is focused on applications on wind musical instruments (presented is an example of sound pressure distribution inside and outside of an organ pipe).
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BI - Acoustics and oscillation
OECD FORD branch
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Result continuities
Project
<a href="/en/project/1M0531" target="_blank" >1M0531: Musical Acoustics Research Centre</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of Second Vienna Talk on Music Acoustics
ISBN
978-3-900914-07-3
ISSN
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e-ISSN
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Number of pages
3
Pages from-to
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Publisher name
Institute of Musical Acoustics (Wiener Klangstil)
Place of publication
Vídeň, Rakousko
Event location
Vídeň, Rakousko
Event date
Jan 1, 2010
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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