Type of Document	Master's Thesis
Author	Jacobson, Carl P.
URN	etd-04072009-040430
Title	Temperature corrected strain measurements using optical time domain reflectometry
Degree	Master of Science
Department	Electrical Engineering
Advisory Committee	Advisor Name Title Claus, Richard O. Committee Chair Jacobs, Ira Committee Member Poon, Ting-Chung Committee Member
Keywords	Optical fibers
Date of Defense	1990-05-12
Availability	restricted
Abstract A method of using optical fiber to measure strain and correct for the effects of temperature is proposed. A means of measuring apparent strain is given, pure temperature is measured using Fresnel-backscatter based Optical Time Domain Reflectametry, and a method for combining the two measurements to obtain a measurement of mechanically-induced strain alone is developed. The background, theory and experimental results that demonstrate the feasibility of such a system are presented and the results are compared with the performance of existing fiber-based means of measuring temperature. Experiments on several OTDR-addressed, intensity-based optical temperature sensors are performed and a method for manufacturing small air gap splices for use in measuring strain at several places along an optical fiber are presented.
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