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dc.contributor.authorBjørndal, Erlendeng
dc.contributor.authorFrøysa, Kjell-Eivindeng
dc.date.accessioned2008-10-06T13:44:58Z
dc.date.available2008-10-06T13:44:58Z
dc.date.issued2008-08-08eng
dc.identifier.citationUltrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on 2008 55 (8): 1781-1793en
dc.identifier.issn0885-3010eng
dc.identifier.urihttp://hdl.handle.net/1956/2781
dc.description.abstractThe known acoustic methods for obtaining the pressure reflection coefficient from a buffer rod based measurement cell are presented, along with 2 new generic approaches for measuring the pressure reflection coefficient using 2 buffer rods enclosing the liquid to be characterized in a symmetrical arrangement. An acoustic transducer is connected to each of the buffer rods. The generic approaches are divided into a relative amplitude approach and a mixed amplitude approach. For the relative amplitude approach, families of 4, 5, or 6 echo signals can be used to obtain the pressure reflection coefficient. The mixed amplitude approach uses specific information about the transducers and/or the electronics sensitivities in receive mode to obtain the pressure reflection coefficient using families of 3, 4, 5, or 6 echo signals. Some of the new methods from the relative amplitude approach imply a reduced uncertainty relative to the previously known ABC method. The effect of the liquid attenuation, digitizer bit resolution, and the signal-to-noise ratio on the uncertainty characteristics of the pressure reflection coefficient are discussed, along with a discussion of the suitability of the various methods for different buffer materials.en
dc.language.isoengeng
dc.publisherIEEEeng
dc.subjectAcoustic measurementeng
dc.subjectAcoustic transducerseng
dc.subjectAcoustic wave reflectioneng
dc.subjectBuffer layerseng
dc.subjectEchoeng
dc.subjectAcoustic methodseng
dc.subjectAcoustic transducerseng
dc.subjectBuffer materialseng
dc.subjectBuffer rod based measurement celleng
dc.subjectEcho signalseng
dc.subjectPressure reflection coefficienteng
dc.subjectSymmetrical arrangementeng
dc.titleAcoustic Methods for Obtaining the Pressure Reflection Coefficient from a Buffer Rod Based Measurement Celleng
dc.typeJournal articleeng
dc.typePeer reviewedeng
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Fysikk: 430nob
bora.peerreviewedPeer reviewedeng
bibo.doihttp://dx.doi.org/10.1109/TUFFC.2008.862eng
dc.identifier.doihttp://dx.doi.org/10.1109/TUFFC.2008.862


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