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An electroacoustic method for measuring airflow resistivity of porous sound-absorbing materials

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An electroacoustic method for measuring airflow resistivity of porous sound-absorbing materials

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dc.contributor.author Alba, Jesus es_ES
dc.contributor.author Arenas, Jorge P. es_ES
dc.contributor.author Rey Tormos, Romina María del es_ES
dc.contributor.author Rodríguez-Vercher, Juan-Carlos es_ES
dc.date.accessioned 2019-10-06T20:02:29Z
dc.date.available 2019-10-06T20:02:29Z
dc.date.issued 2019 es_ES
dc.identifier.issn 0003-682X es_ES
dc.identifier.uri http://hdl.handle.net/10251/127483
dc.description.abstract [EN] In this paper, a method for measuring the airflow resistivity of air-saturated porous sound-absorbing materials is presented. The method is based on a modification of the previous device developed by Dragonetti et al. The approach used in the present work involves a cavity and a Helmholtz resonator that are coupled through a loudspeaker so that the complete system behaves as a fourth-order symmetrical band-pass loudspeaker system. After a straightforward calibration, the airflow resistivity of a material sample is indirectly estimated from the direct measurement of the total electric impedance at the loudspeaker connection terminals. In this way, the use of microphones is not necessary, which makes its implementation very simple and inexpensive. Experimental results obtained with the present method agree well with those obtained through a standardized method as long as the values of the material's airflow resistance are not too high. (C) 2019 Elsevier Ltd. All rights reserved. es_ES
dc.description.sponsorship The authors would like to gratefully acknowledge the support of CONICYT-FONDECYT under Grant 1171110 and to the Vicerectorate of R+i+t at Univ. Politecnica of Valencia, Grant PAID0017. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation FONDECYT/1171110 es_ES
dc.relation UPV/PAID0017
dc.relation.ispartof Applied Acoustics es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Airflow resistivity es_ES
dc.subject Impedance es_ES
dc.subject Porous materials es_ES
dc.subject Sound absorption es_ES
dc.subject Electroacoustics es_ES
dc.subject.classification FISICA APLICADA es_ES
dc.title An electroacoustic method for measuring airflow resistivity of porous sound-absorbing materials es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.apacoust.2019.02.009 es_ES
dc.rights.accessRights Embargado es_ES
dc.date.embargoEndDate 2021-07-01 es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada es_ES
dc.description.bibliographicCitation Alba, J.; Arenas, JP.; Rey Tormos, RMD.; Rodríguez-Vercher, J. (2019). An electroacoustic method for measuring airflow resistivity of porous sound-absorbing materials. Applied Acoustics. 150:132-137. https://doi.org/10.1016/j.apacoust.2019.02.009 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1016/j.apacoust.2019.02.009 es_ES
dc.description.upvformatpinicio 132 es_ES
dc.description.upvformatpfin 137 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 150 es_ES
dc.relation.pasarela S\380689 es_ES
dc.contributor.funder Fondo Nacional de Desarrollo Científico y Tecnológico, Chile es_ES
dc.contributor.funder Universitat Politècnica de València


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