Title page for ETD etd-04072009-040430
|Type of Document
||Jacobson, Carl P.
||Temperature corrected strain measurements using optical time domain reflectometry
||Master of Science
|Claus, Richard O.
|Date of Defense
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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