Abstract
dc:description.abstractDual purpose fiber optic microbend loss sensors have been developed for measurement of underwater acoustic wave amplitudes and for detection of the direction of wave propagation. Cylindrical sensing elements with external threads have fibers wound around them. Axial slots, cut along the length of the cylinder and deeper than the threads, provide the microbends. Three different construction schemes for cylindrical sensing elements are built. The dual purpose hydrophones are characterized for frequencies ranging from 15 kHz to 75 kHz. Based on the results, an improved design that uses the wavelength dependence of microbend loss in a single mode fiber is proposed.
Degree
thesis:*- Name thesis:degree_name
- Master of Science
- Level thesis:degree_level
- masters
- Discipline thesis:degree_discipline
- Electrical Engineering
- Department dc:contributor.department
- Electrical Engineering
- Grantor dc:publisher
- Virginia Tech
- Year dc:date.issued
- 1988
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Vengsarkar, Ashish Madhukar
- Chair dc:contributor.committeechair
-
- Claus, Richard O.
- Committee members dc:contributor.committeemember
-
- Safaai-Jazi, Ahmad
- Pieper, Ronald J.
Rights
dc:rights- Statement dc:rights
-
- In Copyright
- Licence dc:rights.uri
- Language dc:language.iso
- en
Identifiers
dc:identifier.*- Dc Identifier Other
- etd-06102012-040337
- OAI identifier oai:identifier
- oai:vtechworks.lib.vt.edu:10919/43065