On the relationship between sound intensity and wave impedance
| Autor: | Domenico Stanzial(a), Carlos E. Graffigna(a |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | 22nd International Congress on Acoustics ICA 2016, X Congreso Iberoamericano de Acústica, XIV Congreso Argentino de Acústica, XXVI Encontro da Sociedade Brasileira de Acústica, pp. 1–10, Catholic University of Argentina, Buenos Aires, Argentina., 05-09/09/2016 info:cnr-pdr/source/autori:Domenico Stanzial(a), Carlos E. Graffigna(a,b)/congresso_nome:22nd International Congress on Acoustics ICA 2016, X Congreso Iberoamericano de Acústica, XIV Congreso Argentino de Acústica, XXVI Encontro da Sociedade Brasileira de Acústica/congresso_luogo:Catholic University of Argentina, Buenos Aires, Argentina./congresso_data:05-09%2F09%2F2016/anno:2016/pagina_da:1/pagina_a:10/intervallo_pagine:1–10 |
| Popis: | Following a recent paper by one of the author ["On the physical meaning of the power factor in acoustics", J. Acoust. Soc. Am. 131(1), 269-280 (2012)] where the concept of complex intensity has been fully developed from the physical point of view and its spectral properties have been highlighted, the present communication focuses on the relationship between sound intensity and wave impedance. It will be shown how the spectrum of the complex sound intensity magnitude is directly connected with the spectrum of the wave impedance in some model fields (plane quasi-stationary waves and spherical waves) so prefiguring a new methodology for measuring the sound intensity. |
| Databáze: | OpenAIRE |
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