Complex Elastic Coefficient And Mechanical Losses For Piezoelectric Resonators Under Transversal And Thickness Modes

dc.creatorArnold
dc.creatorFrancisco Jose; Goncalves
dc.creatorMarcos Sergio; Massaro Junior
dc.creatorFlavio Rubens; Martins
dc.creatorPaulo Sergio
dc.date2016
dc.date2017-11-13T11:31:38Z
dc.date2017-11-13T11:31:38Z
dc.date.accessioned2018-03-29T05:46:29Z
dc.date.available2018-03-29T05:46:29Z
dc.identifierFerrolectrics. Taylor & Francis Ltd, v. 504, p. 104 - 115, 2016.
dc.identifier0015-0193
dc.identifier1563-5112
dc.identifierWOS:000388662900011
dc.identifier10.1080/00150193.2016.1239999
dc.identifierhttp://www.tandfonline.com/doi/abs/10.1080/00150193.2016.1239999
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/325938
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1362944
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionThe performance of piezoelectric transducers depends upon a set of physical parameters. Among them, losses are one of the most important. Mechanical losses in piezoelectric devices are studied using complex numbers in the elastic coefficients of the models. Usually, numerical methods are employed to obtain the loss parameters through the minimization of an error function. We insert mechanical losses dependent on frequency in Mason's model to evaluate how this dependency affects the electrical impedance curve. The results show that a better curve fitting is achieved when the mechanical loss is a first order function of frequency.
dc.description504
dc.description1
dc.description104
dc.description115
dc.descriptionSao Paulo Research Foundation (FAPESP) [2012/07639-4, 2011/12792-3]
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageEnglish
dc.publisherTaylor & Francis Ltd
dc.publisherAbingdon
dc.relationFerrolectrics
dc.rightsfechado
dc.sourceWOS
dc.subjectPiezoelectricity
dc.subjectTransducers
dc.subjectElectrical Impedance
dc.subjectGenetic Algorithm
dc.subjectFrequency
dc.titleComplex Elastic Coefficient And Mechanical Losses For Piezoelectric Resonators Under Transversal And Thickness Modes
dc.typeArtículos de revistas


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