Fiber-optic current and voltage sensors using a Bi12GeO20single crystal

Author

Kyuma, Kazuo ; Tai, Shuichi ; Nunoshita, Masahiro ; Mikami, Noboru ; Ida, Yoshiaki

Author_Institution

Mitsubishi Electric Corp., Hyogo, Japan

Volume

1

Issue

1

fYear

1983

fDate

3/1/1983 12:00:00 AM

Firstpage

93

Lastpage

97

Abstract

By using Faraday and Pockels´ effects of a Bi12GeO20(BGO) single crystal, two kinds of fiber-optic sensors for electric current and voltage were tentatively fabricated. The optimum design of these sensors and their performances were investigated. It was verified that the BGO crystal is very available for either of the current and voltage sensors with regard to their sensitivity and stability. As for the experimental results, the minimum detectable magnetic field of 10^-2Oe and the temperature dependence within ±2 percent in the temperature range of -25 to 85°C was obtained for the current sensor, while for the voltage sensor the sensitivity of 10^-3V and the temperature dependence within ± 0.5 percent was in the same temperature range.

Keywords

Current transducers; Faraday effect; Optical fiber transducers; Pockels effect; Power system monitoring; Voltage transducers; Bismuth; Magnetic sensors; Optical fiber polarization; Optical fiber sensors; Optical receivers; Optical sensors; Optical transmitters; Sensor phenomena and characterization; Temperature sensors; Voltage;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.1983.1072069

Filename

1072069