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

[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 reson...

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Detalles Bibliográficos
Autores: Alba, Jesus|||0000-0002-4188-854X, del Rey, Romina|||0000-0001-5907-0677, Arenas, Jorge P., Rodríguez-Vercher, Juan-Carlos
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/127483
Acceso en línea:https://riunet.upv.es/handle/10251/127483
Access Level:acceso abierto
Palabra clave:Airflow resistivity
Impedance
Porous materials
Sound absorption
Electroacoustics
FISICA APLICADA
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spelling An electroacoustic method for measuring airflow resistivity of porous sound-absorbing materialsAlba, Jesus|||0000-0002-4188-854Xdel Rey, Romina|||0000-0001-5907-0677Arenas, Jorge P.Rodríguez-Vercher, Juan-CarlosAirflow resistivityImpedancePorous materialsSound absorptionElectroacousticsFISICA APLICADA[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.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.ElsevierDepartamento de Física AplicadaEscuela Politécnica Superior de AlcoyEscuela Politécnica Superior de GandiaCentro de Tecnologías Físicas: Acústica, Materiales y AstrofísicaFondo Nacional de Desarrollo Científico y Tecnológico, ChileUniversitat Politècnica de ValènciaRepositorio Institucional de la Universitat Politècnica de València Riunet20192019-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/127483reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengFondo Nacional de Desarrollo Científico y Tecnológico, Chile https://doi.org/10.13039/501100002850 1171110Universitat Politècnica de València https://doi.org/10.13039/501100004233 PAID-00-17open accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/1274832026-06-13T07:49:27Z
dc.title.none.fl_str_mv An electroacoustic method for measuring airflow resistivity of porous sound-absorbing materials
title An electroacoustic method for measuring airflow resistivity of porous sound-absorbing materials
spellingShingle An electroacoustic method for measuring airflow resistivity of porous sound-absorbing materials
Alba, Jesus|||0000-0002-4188-854X
Airflow resistivity
Impedance
Porous materials
Sound absorption
Electroacoustics
FISICA APLICADA
title_short An electroacoustic method for measuring airflow resistivity of porous sound-absorbing materials
title_full An electroacoustic method for measuring airflow resistivity of porous sound-absorbing materials
title_fullStr An electroacoustic method for measuring airflow resistivity of porous sound-absorbing materials
title_full_unstemmed An electroacoustic method for measuring airflow resistivity of porous sound-absorbing materials
title_sort An electroacoustic method for measuring airflow resistivity of porous sound-absorbing materials
dc.creator.none.fl_str_mv Alba, Jesus|||0000-0002-4188-854X
del Rey, Romina|||0000-0001-5907-0677
Arenas, Jorge P.
Rodríguez-Vercher, Juan-Carlos
author Alba, Jesus|||0000-0002-4188-854X
author_facet Alba, Jesus|||0000-0002-4188-854X
del Rey, Romina|||0000-0001-5907-0677
Arenas, Jorge P.
Rodríguez-Vercher, Juan-Carlos
author_role author
author2 del Rey, Romina|||0000-0001-5907-0677
Arenas, Jorge P.
Rodríguez-Vercher, Juan-Carlos
author2_role author
author
author
dc.contributor.none.fl_str_mv Departamento de Física Aplicada
Escuela Politécnica Superior de Alcoy
Escuela Politécnica Superior de Gandia
Centro de Tecnologías Físicas: Acústica, Materiales y Astrofísica
Fondo Nacional de Desarrollo Científico y Tecnológico, Chile
Universitat Politècnica de València
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Airflow resistivity
Impedance
Porous materials
Sound absorption
Electroacoustics
FISICA APLICADA
topic Airflow resistivity
Impedance
Porous materials
Sound absorption
Electroacoustics
FISICA APLICADA
description [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.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/127483
url https://riunet.upv.es/handle/10251/127483
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Fondo Nacional de Desarrollo Científico y Tecnológico, Chile https://doi.org/10.13039/501100002850 1171110
Universitat Politècnica de València https://doi.org/10.13039/501100004233 PAID-00-17
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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