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dc.contributor.author | Genovés Gómez, Vicente | es_ES |
dc.contributor.author | Gosálbez Castillo, Jorge | es_ES |
dc.contributor.author | Carrión García, Alicia | es_ES |
dc.contributor.author | Miralles Ricós, Ramón | es_ES |
dc.contributor.author | Paya Bernabeu, Jorge Juan | es_ES |
dc.date.accessioned | 2017-03-30T12:37:03Z | |
dc.date.available | 2017-03-30T12:37:03Z | |
dc.date.issued | 2016-02 | |
dc.identifier.issn | 0041-624X | |
dc.identifier.uri | http://hdl.handle.net/10251/79287 | |
dc.description.abstract | In this paper the study of frequency-dependent ultrasonic attenuation in strongly heterogeneous materials is addressed. To determine the attenuation accurately over a wide frequency range, it is necessary to have suitable excitation techniques. Three kinds of transmitted signals have been analysed, grouped according to their bandwidth: narrowband and broadband signals. The mathematical formulation has revealed the relation between the distribution of energy in their spectra and their immunity to noise. Sinusoidal and burst signals have higher signal-to-noise ratios (SNRs) but need many measurements to cover their frequency range. However, linear swept-frequency signals (chirp) improve the effective bandwidth covering a wide frequency range with a single measurement and equivalent accuracy, at the expense of a lower SNR. In the case of highly attenuating materials, it is proposed to use different configurations of chirp signals, enabling injecting more energy, and therefore, improving the sensitivity of the technique without a high time cost. Thus, if the attenuation of the material and the sensitivity of the measuring equipment allows the use of broadband signals, the combination of this kind of signal and suitable signal processing results in an optimal estimate of frequency-dependent attenuation with a minimum measurement time. | es_ES |
dc.description.sponsorship | This work has been supported by the Spanish Administration under grant BIA2014-55311-C2-2-P. | en_EN |
dc.language | Inglés | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation.ispartof | Ultrasonics | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | Chirp signal | es_ES |
dc.subject | Attenuation | es_ES |
dc.subject | Concrete | es_ES |
dc.subject | Ultrasonics | es_ES |
dc.subject | Frequency sweep | es_ES |
dc.subject.classification | INGENIERIA DE LA CONSTRUCCION | es_ES |
dc.subject.classification | TEORIA DE LA SEÑAL Y COMUNICACIONES | es_ES |
dc.title | Optimized ultrasonic attenuation measures for non-homogeneous materials | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1016/j.ultras.2015.09.007 | |
dc.relation.projectID | info:eu-repo/grantAgreement/MINECO//BIA2014-55311-C2-2-P/ES/NUEVAS APLICACIONES DE ENSAYOS NO DESTRUCTIVOS BASADOS EN ONDAS MECANICAS PARA LA EVALUACION DE LA DEGRADACION EN MATERIALES CEMENTANTES/ | es_ES |
dc.rights.accessRights | Abierto | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Instituto Universitario de Telecomunicación y Aplicaciones Multimedia - Institut Universitari de Telecomunicacions i Aplicacions Multimèdia | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros de Caminos, Canales y Puertos - Escola Tècnica Superior d'Enginyers de Camins, Canals i Ports | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros de Telecomunicación - Escola Tècnica Superior d'Enginyers de Telecomunicació | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Instituto de Ciencia y Tecnología del Hormigón - Institut de Ciència i Tecnologia del Formigó | es_ES |
dc.description.bibliographicCitation | Genovés Gómez, V.; Gosálbez Castillo, J.; Carrión García, A.; Miralles Ricós, R.; Paya Bernabeu, JJ. (2016). Optimized ultrasonic attenuation measures for non-homogeneous materials. Ultrasonics. 65:345-352. https://doi.org/10.1016/j.ultras.2015.09.007 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.ultras.2015.09.007 | es_ES |
dc.description.upvformatpinicio | 345 | es_ES |
dc.description.upvformatpfin | 352 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 65 | es_ES |
dc.relation.senia | 325936 | es_ES |
dc.contributor.funder | Ministerio de Economía y Competitividad | es_ES |