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Advances in elliptical-core two-mode optical fiber sensors

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dc.contributor.authorMiller, Mark S.en
dc.contributor.departmentElectrical Engineeringen
dc.date.accessioned2014-03-14T21:31:43Zen
dc.date.adate2009-03-14en
dc.date.available2014-03-14T21:31:43Zen
dc.date.issued1990en
dc.date.rdate2009-03-14en
dc.date.sdate2009-03-14en
dc.description.abstractMethods designed to improve the practicality of the elliptical-core two-mode optical fiber sensors for use in real-life applications are presented. The improvements include the development of insensitive lead fibers and an optical device which allows fringe counting at the output of the sensor. The insensitive leads eliminate extraneous perturbations and effectively isolate the sensing region. The fringe counting optics are designed to generate quadrature-phase shifted signals, thereby allowing the determination of whether the strain is increasing or decreasing. Work performed to advance the understanding of the effect of sensor placement within a composite specimen is also presented. Optical fiber sensors are embedded between different laminae of a graphite-epoxy composite panel, and the outputs of the sensors are shown to be proportional to the distance of the sensor from the neutral axis.en
dc.description.degreeMaster of Scienceen
dc.format.extentviii, 89 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-03142009-040708en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-03142009-040708/en
dc.identifier.urihttp://hdl.handle.net/10919/41617en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1990.M544.pdfen
dc.relation.isformatofOCLC# 22439179en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1990.M544en
dc.subject.lcshOptical detectors -- Researchen
dc.subject.lcshOptical fibers -- Designen
dc.titleAdvances in elliptical-core two-mode optical fiber sensorsen
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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