Airborne non-contact and contact broadband ultrasounds for frequency attenuation profile estimation of cementitious materials

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dc.contributor.author Gosálbez, J.
dc.contributor.author Wright, William M. D.
dc.contributor.author Jiang, W.
dc.contributor.author Carrión, A.
dc.contributor.author Genovés, V.
dc.contributor.author Bosch, I.
dc.date.accessioned 2018-04-05T10:52:53Z
dc.date.available 2018-04-05T10:52:53Z
dc.date.issued 2018-03-28
dc.identifier.citation Gosálbez, J., Wright, W. M. D., Jiang, W., Carrión, A., Genovés, V. and Bosch, I. (2018) ‘Airborne non-contact and contact broadband ultrasounds for frequency attenuation profile estimation of cementitious materials’, Ultrasonics. doi:10.1016/j.ultras.2018.03.011 en
dc.identifier.issn 0041-624X
dc.identifier.issn 1874-9968
dc.identifier.uri http://hdl.handle.net/10468/5740
dc.identifier.doi 10.1016/j.ultras.2018.03.011
dc.description.abstract In this paper, the study of frequency-dependent ultrasonic attenuation in strongly heterogeneous cementitious materials is addressed. To accurately determine the attenuation over a wide frequency range, it is necessary to have suitable excitation techniques. We have analysed two kinds of ultrasound techniques: contact ultrasound and airborne non-contact ultrasound. The mathematical formulation for frequency-dependent attenuation has been established and it has been revealed that each technique may achieve similar results but requires specific different calibration processes. In particular, the airborne non-contact technique suffers high attenuation due to energy losses at the air-material interfaces. Thus, its bandwidth is limited to low frequencies but it does not require physical contact between transducer and specimen. In contrast, the classical contact technique can manage higher frequencies but the measurement depends on the pressure between the transducer and the specimen. Cement specimens have been tested with both techniques and frequency attenuation dependence has been estimated. Similar results were achieved at overlapping bandwidth and it has been demonstrated that the airborne non-contact ultrasound technique could be a viable alternative to the classical contact technique. en
dc.description.sponsorship Ministerio de Educación, Cultura y Deporte (Salvador Madariaga’s Programme PR2016-00344 / PR2017-00658); General State Administration of Spain (grant BIA2014-55311-C2-2-P) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Elsevier B.V. en
dc.rights © 2018, Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license. en
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/ en
dc.subject Airborne ultrasound en
dc.subject Attenuation en
dc.subject Broadband signal en
dc.subject Ultrasound en
dc.subject Concrete en
dc.subject Non-contact ultrasound en
dc.title Airborne non-contact and contact broadband ultrasounds for frequency attenuation profile estimation of cementitious materials en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother William Wright, Electrical & Electronic Engineering, University College Cork, Cork, Ireland. +353-21-490-3000 Email: bill.wright@ucc.ie en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 24 months after publication by request of the publisher. en
dc.check.date 2020-03-28
dc.date.updated 2018-04-03T11:45:54Z
dc.description.version Accepted Version en
dc.internal.rssid 432431949
dc.contributor.funder University College Cork en
dc.contributor.funder Ministerio de Educación, Cultura y Deporte en
dc.contributor.funder Universitat Politècnica de València en
dc.contributor.funder General State Administration of Spain
dc.description.status Peer reviewed en
dc.identifier.journaltitle Ultrasonics en
dc.internal.copyrightchecked Yes en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress bill.wright@ucc.ie en
dc.internal.bibliocheck In Press. Check for vol. / issue / page numbers / supplementary files. Amend citation as necessary.


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© 2018, Elsevier B.V. All rights reserved.  This manuscript version is made available under the CC-BY-NC-ND 4.0 license. Except where otherwise noted, this item's license is described as © 2018, Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.
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