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dc.contributor.authorSan Emeterio, José Luis-
dc.contributor.authorRamos, Antonio-
dc.date.accessioned2008-10-26T11:18:59Z-
dc.date.available2008-10-26T11:18:59Z-
dc.date.issued2002-09-
dc.identifier.citationForum Acusticum Sevilla 2002. Ultrasonics ; ULT-04-007-IPen_US
dc.identifier.isbn84-87985-07-6-
dc.identifier.urihttp://hdl.handle.net/10261/8000-
dc.description6 pages, 3 figures.-- PACS nr.: 43.38.Fx.-- Communication presented at: Forum Acusticum Sevilla 2002 (Sevilla, Spain, 16-20 Sep 2002), comprising: 3rd European Congress on Acoustics; XXXIII Spanish Congress on Acoustics (TecniAcústica 2002); European and Japanese Symposium on Acoustics; 3rd Iberian Congress on Acoustics.-- Special issue of the journal Revista de Acústica, Vol. XXXIII, year 2002.en_US
dc.description.abstractThickness extensional (T.E.) piezoelectric elements are the base of many broadband ultrasonic transducers for imaging and detection applications. The measurement of their electrical impedance as a function of frequency, using an impedance analyser, is the usual technique to evaluate piezoelectric transducer material properties as well as to analyse the characteristics of multilayer broadband transducers. Intrinsic mechanical, dielectric and piezoelectric losses, in addition with external mechanical loading (backing, matching, medium) modify the fundamental resonance (fn, fs, fr), and antiresonance (fa, fp, fm ) frequencies. On the other hand, the peak frequencies of the emission, reception and pulse-echo ultrasonic working bands depend on these same aspects but they are also dependent on the external E/R electrical loading. In this paper, some of these dependencies of the fundamental frequencies are described and analysed by means of an accurate transmission line model.en_US
dc.description.sponsorshipThis work has been supported by the Spanish R&D Project C.I.C.Y.T. Ref. TAP99-0864.en_US
dc.format.extent35278 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoengen_US
dc.publisherSociedad Española de Acústicaen_US
dc.rightsopenAccessen_US
dc.subjectBroadband ultrasonic transducersen_US
dc.subjectThickness extensional (T.E.) piezoelectric resonatorsen_US
dc.subjectCharacterizationen_US
dc.subjectElectrical impedance curvesen_US
dc.subjectFundamental resonance frequenciesen_US
dc.subjectDependenciesen_US
dc.titleDependence of the fundamental frequencies of T. E. piezoelectric transducers on intrinsic losses and external loadingen_US
dc.typecomunicación de congresoen_US
dc.description.peerreviewedPeer revieweden_US
dc.type.coarhttp://purl.org/coar/resource_type/c_5794es_ES
item.openairetypecomunicación de congreso-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
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