This paper describes recent developments in hot-spot detection using distributed fiber-optic sensing systems (DFOSS) and special sensitized polymeric coatings. The work has particular relevance to the electrical power industry for monitoring stator bars, transformers and overhead/underground high-voltage transmission lines. Two types of material are discussed which show interesting optical switching properties. The materials so far investigated are more applicable to hot-spot sensing. However, further work is required to extend the dynamic range so that temperatures may be sensed.

Date Published: 28 April 1987
PDF: 7 pages
Proc. SPIE 0718, Fiber Optic and Laser Sensors IV, (28 April 1987); doi: 10.1117/12.937519

Published in SPIE Proceedings Vol. 0718:
Fiber Optic and Laser Sensors IV
Ramon P. DePaula; Eric Udd, Editor(s)