A fiber-optic Bragg-grating temperature sensor for high-voltage transmission lines

Author

Romero, Murilo A. ; Calligaris, Alberto, Jr. ; Silva, Milson T Camargo

Author_Institution

Dept. of Electr. Eng., Sao Paulo Univ., Brazil

Volume

1

fYear

1997

fDate

11-14 Aug 1997

Firstpage

34

Abstract

In this work a new fiber-optic temperature sensor is proposed. The device is based on Bragg gratings photoinduced on the optical fiber core and it is intended for temperature monitoring of electric power systems and high-voltage transmission lines. In contrast to most published work the sensor does not rely on interferometric techniques. The procedure being proposed employs a dual-wavelength measurement of the optical power being reflected (or transmitted) by a Bragg mirror in order to track temperature variations, simultaneously cancelling spurious readings due to source power fluctuations, fiber attenuation, losses, etc. Preliminary results are presented and a possible experimental implementation is discussed

Keywords

diffraction gratings; fibre optic sensors; power transmission lines; temperature sensors; dual-wavelength measurement; electric power system; fiber-optic Bragg-grating temperature sensor; high-voltage transmission line; Bragg gratings; Fiber gratings; Optical attenuators; Optical fiber devices; Optical fiber sensors; Optical fibers; Optical interferometry; Power transmission lines; Temperature measurement; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics Conference, 1997. Linking to the Next Century. Proceedings., 1997 SBMO/IEEE MTT-S International

Conference_Location

Natal

Print_ISBN

0-7803-4165-1

Type

conf

DOI

10.1109/SBMOMO.1997.646792

Filename

646792