Sapphire fiber based high temperature extensometer

Simple item page
dc.contributor.authorFang, Xiaojunen
dc.contributor.committeememberClaus, Richard O.en
dc.contributor.committeememberMurphy, Kent A.en
dc.contributor.committeememberWang, Anboen
dc.contributor.departmentElectrical Engineeringen
dc.date.accessioned2014-03-14T21:27:51Zen
dc.date.adate2010-01-26en
dc.date.available2014-03-14T21:27:51Zen
dc.date.issued1994-05-05en
dc.date.rdate2010-01-26en
dc.date.sdate2010-01-26en
dc.description.abstractNew sapphire fiber based sensor structures for high temperature strain measurement are proposed and studied in this report. The self-mixing interferometry has been studied and tested. The advantage of this technique is the source coherence insensitivity and direction distinguishment capability. Fringes of the self-mixing interferometer built with standard multimode fiber and sapphire fiber were observed. The application of this technique to static strain rneasureament seems difficult to stabilize, whereas its implementation to acoustic sensing with single-mode fiber coil as the sensing component will be very interesting. The approach by Moire interferometry and equal-path coherence matching interferometer are two promising methods for high temperature displacement measurement. The advantages of the Moire interferometer are source coherence independence and large measurement range. The advantage of coherence matching absolute interferometer is its simplicity in sensor structure. The structures of coherence matching methods and multiplexing techniques are generalized. From this research, we can conclude that the sapphire fiber based high temperature extensometer may be realized by different methods.en
dc.description.degreeMaster of Scienceen
dc.format.extentii, 24 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-01262010-020150en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-01262010-020150/en
dc.identifier.urihttp://hdl.handle.net/10919/40789en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V851_1994.F364.pdfen
dc.relation.isformatofOCLC# 31228830en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V851 1994.F364en
dc.subject.lcshExtensometer -- Design and constructionen
dc.subject.lcshMaterials at high temperatures -- Instruments -- Design and constructionen
dc.titleSapphire fiber based high temperature extensometeren
dc.typeMaster's projecten
dc.type.dcmitypeTexten
thesis.degree.disciplineElectrical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
LD5655.V851_1994.F364.pdf
Size:
1.1 MB
Format:
Adobe Portable Document Format
Download

Collections

Master's Papers and Projects