Evanescent-coupling fiber optic pollution monitoring system using etched D-shape E-core fiber

Shing M. Lee; Changjie Yang; Wei Ping Pan

doi:10.1117/12.260601

10 December 1996 Evanescent-coupling fiber optic pollution monitoring system using etched D-shape E-core fiber

Shing M. Lee, Changjie Yang, Wei Ping Pan

Proceedings Volume 2836, Chemical, Biochemical, and Environmental Fiber Sensors VIII; (1996) https://doi.org/10.1117/12.260601
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

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.

Citation Download Citation

Shing M. Lee, Changjie Yang, and Wei Ping Pan "Evanescent-coupling fiber optic pollution monitoring system using etched D-shape E-core fiber", Proc. SPIE 2836, Chemical, Biochemical, and Environmental Fiber Sensors VIII, (10 December 1996); https://doi.org/10.1117/12.260601

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