Microprocessor-based system for the detection and characterization of acoustic emissions for materials testing

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dc.contributor.authorBettinger, David Darwinen
dc.contributor.committeechairTront, Joseph G.en
dc.contributor.committeememberConners, Richard W.en
dc.contributor.committeememberLoferski, Joseph R.en
dc.contributor.departmentElectrical Engineeringen
dc.date.accessioned2014-03-14T20:45:42Zen
dc.date.adate2009-09-19en
dc.date.available2014-03-14T20:45:42Zen
dc.date.issued1992-04-07en
dc.date.rdate2009-09-19en
dc.date.sdate2009-09-19en
dc.description.abstractThis document explains the design of the Acoustic Emission Detection and Characterization System (AEDCS). The AEDCS is capable of recording several Acoustic Emmision ( E) characteristics including AE event peak amplitude, duration, frequency, and time of occurrence. The analog and digital circuits designed to implement these functions are monitored and controlled by a microprocessor system. The microprocessor system processes and records the AE event information, and passes it to a host computer for mass storage and further manipulation. The AEDCS is the first low cost, self-contained device that records these AE characteristics in real time. The AEDCS is designed to be used in the AE testing of materials. It is well-suited for non-destructive applications that produce a relatively low AE count rate, such as AE monitoring of wooden structures. The AEDCS is also capable of recording AE event characteristics in destructive test applications. The results of using the AEDCS in a mechanical loading test application on several different types of wood are given here as well.en
dc.description.degreeMaster of Scienceen
dc.format.extentix, 91 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-09192009-040239en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-09192009-040239/en
dc.identifier.urihttp://hdl.handle.net/10919/35111en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1992.B477.pdfen
dc.relation.isformatofOCLC# 26354923en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1992.B477en
dc.subject.lcshAcoustic emissionen
dc.subject.lcshMaterials -- Testingen
dc.titleMicroprocessor-based system for the detection and characterization of acoustic emissions for materials testingen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineElectrical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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