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Proceedings Paper

Evanescent-coupling fiber optic pollution monitoring system using etched D-shape E-core fiber
Author(s): Shing M. Lee; Changjie Yang; Wei Ping Pan
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Paper Abstract

Surface contamination of insulators in high voltage transmission and distribution systems may lead to troublesome flashovers which interrupt service. Insulator contamination may be monitored using direct measurement of equivalent salt deposit density (ESDD), which directly relates to the flashover voltage. A fiber-optic evanescent- coupling fiber-optic ESDD monitor is presented. The use of a piece of D-shape E-core fiber as sensor head can provide a sensitive and large area ESDD monitoring system. We have demonstrated the use of D-shape fiber in monitoring ESDD on insulator surfaces. A simple process has been developed to precisely etch the D-fiber. The polarimetric and evanescent loss sensors have been investigated. The evanescent loss sensor is particularly suitable for in-situ ESDD monitoring in power transmission lines and substations.

Paper Details

Date Published: 10 December 1996
PDF: 8 pages
Proc. SPIE 2836, Chemical, Biochemical, and Environmental Fiber Sensors VIII, (10 December 1996); doi: 10.1117/12.260601
Show Author Affiliations
Shing M. Lee, Univ. of New Orleans (United States)
Changjie Yang, Univ. of New Orleans (United States)
Wei Ping Pan, Univ. of New Orleans (United States)

Published in SPIE Proceedings Vol. 2836:
Chemical, Biochemical, and Environmental Fiber Sensors VIII
Robert A. Lieberman, Editor(s)

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