Incoherent projection Moire contour sensing with coherent processing for large structures

dc.contributor.authorOtt, Melanie N.en
dc.contributor.departmentElectrical Engineeringen
dc.date.accessioned2014-03-14T21:43:01Zen
dc.date.adate2009-08-18en
dc.date.available2014-03-14T21:43:01Zen
dc.date.issued1993en
dc.date.rdate2009-08-18en
dc.date.sdate2009-08-18en
dc.description.abstractThis paper presents the theory and results of three Moire methods 1) the incoherent projection Moire method, 2) the electronic phase detection method, and 3) the fringe multiplication method. It is proposed that these three methods be used together in a system to measure out-of-plane displacements of large diffusely reflecting surfaces. The operation of the system is divided into two processes. The first process records an incoherent moire pattern which contains the out-of-plane displacement information. The second process uses a transduced coherent image of the pattern produced in the first process to optically generate a quantitative result with variable sensitivity. The coherent processing is a technique that uses the fringe multiplication method with the electronic phase-detection method. The result is the quantitative, out-of-plane displacement measurement with sensitivity enhancement that can be altered during coherent processing of the Moire fringe pattern.en
dc.description.degreeMaster of Scienceen
dc.format.extentxiii, 116 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-08182009-040501en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-08182009-040501/en
dc.identifier.urihttp://hdl.handle.net/10919/44292en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1993.O87.pdfen
dc.relation.isformatofOCLC# 29551635en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1993.O87en
dc.subject.lcshMoiré methoden
dc.subject.lcshOptical detectorsen
dc.titleIncoherent projection Moire contour sensing with coherent processing for large structuresen
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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