Optical Fiber Tip Pressure Sensor

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dc.contributor.authorWang, Xingweien
dc.contributor.committeechairWang, Anboen
dc.contributor.committeememberLiu, Yiluen
dc.contributor.committeememberPickrell, Gary R.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2014-03-14T20:47:02Zen
dc.date.adate2004-11-10en
dc.date.available2014-03-14T20:47:02Zen
dc.date.issued2004-10-18en
dc.date.rdate2004-11-10en
dc.date.sdate2004-10-25en
dc.description.abstractMiniature pressure sensors which can endure harsh environments are a highly sought after goal in industrial, medical and research fields. Microelectromechanical systems (MEMS) are the current methods to fabricate such small sensors. However, they suffer from low sensitivity and poor mechanical properties. To fulfill the need for robust and reliable miniature pressure sensors that can operate under high temperatures, a novel type of optical fiber tip sensor only 125μm in diameter is presented in this thesis. The essential element is a piece of hollow fiber which connects the fiber end and a diaphragm to form a Fabry-Pérot cavity. The all-fused-silica structure fabricated directly on a fiber tip has little temperature dependence and can function very well with high resolution and accuracy at temperatures up to 600 °C. In addition to its miniature size, its advantages include superior mechanical properties, biocompatibility, immunity to electromagnetic interference, disposability and cost-effective fabrication. The principle of operation, design analysis, fabrication implementation and performance evaluation of the sensor are discussed in detail in the following chapters.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-10252004-172411en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-10252004-172411/en
dc.identifier.urihttp://hdl.handle.net/10919/35490en
dc.publisherVirginia Techen
dc.relation.hasparttitle.pdfen
dc.relation.haspartfull_text.pdfen
dc.relation.haspartindex.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectminiatureen
dc.subjectoptical fiber tip pressure sensoren
dc.subjectFabry-Perot interferometryen
dc.titleOptical Fiber Tip Pressure Sensoren
dc.typeThesisen
thesis.degree.disciplineElectrical and Computer Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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