Design of an Analog Adaptive Piezoelectric Sensoriactuator

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dc.contributor.authorFannin, Christopher A.en
dc.contributor.committeechairSaunders, William R.en
dc.contributor.committeememberCudney, Harley H.en
dc.contributor.committeememberWicks, Alfred L.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2014-03-14T20:52:30Zen
dc.date.adate1997-09-09en
dc.date.available2014-03-14T20:52:30Zen
dc.date.issued1997-02-26en
dc.date.rdate1998-09-09en
dc.date.sdate1997-02-26en
dc.description.abstractIn order for a piezoelectric transducer to be used as a sensor and actuator simultaneously, a direct charge due to the applied voltage must be removed from the total response in order to allow observation of the mechanical response alone. Earlier researchers proposed electronic compensators to remove this term by creating a reference signal which destructively interferes with the direct piezoelectric charge output, leaving only the charge related to the mechanical response signal. This research presents alternative analog LMS adaptive filtering methods which accomplish the same result. The main advantage of the proposed analog compensation scheme is its ability to more closely match the order of the adaptive filter to the assumed dynamics of the piezostructure using an adaptive first-order high-pass filter. Theoretical and experimental results are provided along with a discussion of the difficulties encountered in trying to achieve perfect compensation of the feedthrough capacitive charge on a piezoelectric wafer.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-8897-171952en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-8897-171952/en
dc.identifier.urihttp://hdl.handle.net/10919/37020en
dc.publisherVirginia Techen
dc.relation.haspartCfannin.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectpiezoelectricen
dc.subjectcollocateden
dc.subjectsmart structureen
dc.subjectLMS algorithmen
dc.subjectsystem IDen
dc.titleDesign of an Analog Adaptive Piezoelectric Sensoriactuatoren
dc.typeThesisen
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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