TITLE

Fluorescence probes for study of insulator damage

AUTHOR(S)
Menzel, E. Roland; Hatfield, Lynn L.; Agarwal, Vijendra K.
PUB. DATE
December 1986
SOURCE
Applied Physics Letters;12/15/1986, Vol. 49 Issue 24, p1638
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present an innovative approach to the study of electrical damage in insulators, involving laser excited fluorescence probes. Specimens first subjected to surface flashover in vacuum were stained with highly fluorescent dyes, chosen to have varied chemical properties, and examined under laser excitation. Surface flashover tracks, locations of corona discharge, and other features were readily revealed, even when no damage was visible to the naked eye. Our results indicate that chemical changes, charge distributions, and structural features arising from electrical, mechanical, and thermal stresses can be probed.
ACCESSION #
9821643

 

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