Experimental study of the complex reflection coefficient of shear waves from the solid-liquid interface

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorFranco, Ediguer E.
dc.creatorAdamowski, Julio C.
dc.creatorHiguti, Ricardo T.
dc.creatorBuiochi, Flávio
dc.date2014-05-27T11:24:35Z
dc.date2016-10-25T18:28:13Z
dc.date2014-05-27T11:24:35Z
dc.date2016-10-25T18:28:13Z
dc.date2010-01-01
dc.date.accessioned2017-04-06T01:40:04Z
dc.date.available2017-04-06T01:40:04Z
dc.identifierPhysics Procedia, v. 3, n. 1, p. 803-809, 2010.
dc.identifier1875-3884
dc.identifier1875-3892
dc.identifierhttp://hdl.handle.net/11449/71506
dc.identifierhttp://acervodigital.unesp.br/handle/11449/71506
dc.identifier10.1016/j.phpro.2010.01.103
dc.identifier2-s2.0-77951549931.pdf
dc.identifier2-s2.0-77951549931
dc.identifierhttp://dx.doi.org/10.1016/j.phpro.2010.01.103
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/892494
dc.descriptionThe determination of the reflection coefficient of shear waves reflected from a solid-liquid interface is an important method in order to study the viscoelastic properties of liquids at high frequency. The reflection coefficient is a complex number. While the magnitude measurement is relatively easy and precise, the phase measurement is very difficult due to its strong temperature dependence. For that reason, most authors choose a simplified method in order to obtain the viscoelastic properties of liquids from the measured coefficient. In this simplified method, inconsistent viscosity results are obtained because pure viscous behavior is assumed and the phase is not measured. This work deals with an effort to improve the experimental technique required to measure both the magnitude and phase of the reflection coefficient and it intends to report realistic values for oils in a wide range of viscosity (0.092 - 6.7 Pa.s). Moreover, a device calibration process is investigated in order to monitor the dynamic viscosity of the liquid.
dc.languageeng
dc.relationPhysics Procedia
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectReflection coefficient
dc.subjectShear waves
dc.subjectSolid-liquid interface
dc.subjectViscoelasticity
dc.subjectComplex number
dc.subjectComplex reflection coefficient
dc.subjectDevice calibration
dc.subjectDynamic viscosities
dc.subjectExperimental studies
dc.subjectExperimental techniques
dc.subjectHigh frequency
dc.subjectMagnitude measurement
dc.subjectReflection coefficients
dc.subjectSimplified method
dc.subjectSolid-liquid interfaces
dc.subjectTemperature dependence
dc.subjectViscoelastic properties
dc.subjectElasticity
dc.subjectIntensive care units
dc.subjectLiquids
dc.subjectPhase measurement
dc.subjectReflection
dc.subjectShear flow
dc.subjectUltrasonics
dc.subjectViscosity
dc.subjectPhase interfaces
dc.titleExperimental study of the complex reflection coefficient of shear waves from the solid-liquid interface
dc.typeOtro


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