Open AccessDistributed measurement of high electric current by means of polarimetric optical fiber sensor
Author(s) -
Luca Palmieri,
Davide Sarchi,
Andrea Galtarossa
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.011073
Subject(s) - faraday effect , optics , fiber optic sensor , optical fiber , polarimetry , current sensor , rayleigh scattering , polarization (electrochemistry) , electric current , polarization maintaining optical fiber , distributed acoustic sensing , materials science , current (fluid) , electric field , physics , scattering , chemistry , quantum mechanics , magnetic field , thermodynamics
A novel distributed optical fiber sensor for spatially resolved monitoring of high direct electric current is proposed and analyzed. The sensor exploits Faraday rotation and is based on the polarization analysis of the Rayleigh backscattered light. Preliminary laboratory tests, performed on a section of electric cable for currents up to 2.5 kA, have confirmed the viability of the method.