Ultrasonic spectroscopy of liquid filled piezoelectric tube

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dc.contributor.advisorTapson, Jonathanen_ZA
dc.contributor.advisorDavies, Jen_ZA
dc.contributor.authorPrenzlow, Bjornen_ZA
dc.date.accessioned2014-07-31T10:54:02Z
dc.date.available2014-07-31T10:54:02Z
dc.date.issued2006en_ZA
dc.descriptionIncludes bibliographical references (leaves 102-105).
dc.description.abstractThe characterization and classification of liquids through instrumentation is essential in many industries. As such, measuring the characteristics of liquids is not just useful as a control parameter within an industrial process; such measurements can also be used to classify the liquid. Such a sensor is especially practical if it can be connected in-line with the liquid to be measured, thus minimally influencing flow. A piezoceramic tube was studied in an attempt to produce a sensor to encompass exactly those aims. Spectra were taken of liquid-filled piezoceramic tubes. Severalmodels for this system, both for the piezoceramic tube and the liquid within it, were then studied to determine an accurate mathematical representation of the measured spectra. The model ultimately used was a derived equation for the dynamics of the liquid. The simulated spectra were optimized to match the actual data, using several techniques ranging from simple search algorithms to breeder algorithms. The optimization technique used was based upon the complexity of the model implemented. The effect of the error calculation method is important and is discussed. From the optimization results, the speed of sound, density and viscosity of the liquid can be determined to accuracies of less than 0.2%, 3% and 10% respectively.en_ZA
dc.identifier.apacitationPrenzlow, B. (2006). <i>Ultrasonic spectroscopy of liquid filled piezoelectric tube</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering. Retrieved from http://hdl.handle.net/11427/5123en_ZA
dc.identifier.chicagocitationPrenzlow, Bjorn. <i>"Ultrasonic spectroscopy of liquid filled piezoelectric tube."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 2006. http://hdl.handle.net/11427/5123en_ZA
dc.identifier.citationPrenzlow, B. 2006. Ultrasonic spectroscopy of liquid filled piezoelectric tube. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Prenzlow, Bjorn AB - The characterization and classification of liquids through instrumentation is essential in many industries. As such, measuring the characteristics of liquids is not just useful as a control parameter within an industrial process; such measurements can also be used to classify the liquid. Such a sensor is especially practical if it can be connected in-line with the liquid to be measured, thus minimally influencing flow. A piezoceramic tube was studied in an attempt to produce a sensor to encompass exactly those aims. Spectra were taken of liquid-filled piezoceramic tubes. Severalmodels for this system, both for the piezoceramic tube and the liquid within it, were then studied to determine an accurate mathematical representation of the measured spectra. The model ultimately used was a derived equation for the dynamics of the liquid. The simulated spectra were optimized to match the actual data, using several techniques ranging from simple search algorithms to breeder algorithms. The optimization technique used was based upon the complexity of the model implemented. The effect of the error calculation method is important and is discussed. From the optimization results, the speed of sound, density and viscosity of the liquid can be determined to accuracies of less than 0.2%, 3% and 10% respectively. DA - 2006 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2006 T1 - Ultrasonic spectroscopy of liquid filled piezoelectric tube TI - Ultrasonic spectroscopy of liquid filled piezoelectric tube UR - http://hdl.handle.net/11427/5123 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/5123
dc.identifier.vancouvercitationPrenzlow B. Ultrasonic spectroscopy of liquid filled piezoelectric tube. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 2006 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/5123en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Electrical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherElectrical Engineeringen_ZA
dc.titleUltrasonic spectroscopy of liquid filled piezoelectric tubeen_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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