Ultrasonic material characterization using large-aperture PVDF receivers
dc.contributor.author | Adamowski, J. C. | |
dc.contributor.author | Buiochi, F. | |
dc.contributor.author | Higuti, R. T. [UNESP] | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.contributor.institution | Universidade de São Paulo (USP) | |
dc.date.accessioned | 2014-05-20T13:29:13Z | |
dc.date.available | 2014-05-20T13:29:13Z | |
dc.date.issued | 2010-02-01 | |
dc.description.abstract | This work describes the use of a large-aperture PVDF receiver in the measurement of liquid density and composite material elastic constants. The density measurement of several liquids is obtained with accuracy of 0.2% using a conventional NDE emitter transducer and a 70-mm-diameter, 52-mu m P(VDF-TrFE) membrane with gold electrodes. The determination of the elastic constants is based on the phase velocity measurement. Diffraction can lead to errors around 1% in velocity measurement when using alternatively the conventional pair of ultrasonic transducers (1-MHz frequency and 19-mm-diameter) operating in through-transmission mode, separated by a distance of 100 mm. This effect is negligible when using a pair of 10-MHz, 19-mm-diameter transducers. Nevertheless, the dispersion at 10 MHz can result in errors of about 0.5%, when measuring the velocity in composite materials. The use of an 80-mm diameter, 52-mu m-thick PVDF membrane receiver practically eliminates the diffraction effects in phase velocity measurement. The elastic constants of a carbon fiber reinforced polymer were determined and compared with the values obtained by a tensile test. (C) 2009 Elsevier B. V. All rights reserved. | en |
dc.description.affiliation | Univ Estadual Paulista, Dep Elect Eng, BR-15385000 Ilha Solteira, SP, Brazil | |
dc.description.affiliation | Univ São Paulo, Escola Politecn, BR-05508900 São Paulo, Brazil | |
dc.description.affiliationUnesp | Univ Estadual Paulista, Dep Elect Eng, BR-15385000 Ilha Solteira, SP, Brazil | |
dc.format.extent | 110-115 | |
dc.identifier | http://dx.doi.org/10.1016/j.ultras.2009.09.018 | |
dc.identifier.citation | Ultrasonics. Amsterdam: Elsevier B.V., v. 50, n. 2, p. 110-115, 2010. | |
dc.identifier.doi | 10.1016/j.ultras.2009.09.018 | |
dc.identifier.issn | 0041-624X | |
dc.identifier.lattes | 6405339510883203 | |
dc.identifier.orcid | 0000-0003-4201-5617 | |
dc.identifier.uri | http://hdl.handle.net/11449/9837 | |
dc.identifier.wos | WOS:000271779500004 | |
dc.language.iso | eng | |
dc.publisher | Elsevier B.V. | |
dc.relation.ispartof | Ultrasonics | |
dc.relation.ispartofjcr | 2.377 | |
dc.rights.accessRights | Acesso restrito | |
dc.source | Web of Science | |
dc.subject | Density | en |
dc.subject | Elastic constants | en |
dc.subject | Large-aperture receiver | en |
dc.subject | PVDF | en |
dc.subject | Material characterization | en |
dc.title | Ultrasonic material characterization using large-aperture PVDF receivers | en |
dc.type | Artigo | |
dcterms.license | http://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy | |
dcterms.rightsHolder | Elsevier B.V. | |
dspace.entity.type | Publication | |
unesp.author.lattes | 6405339510883203[3] | |
unesp.author.orcid | 0000-0003-4201-5617[3] | |
unesp.campus | Universidade Estadual Paulista (UNESP), Faculdade de Engenharia, Ilha Solteira | pt |
unesp.department | Engenharia Elétrica - FEIS | pt |
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