Fibre-optic voltage sensor using an optical lever

Author

Dinev, P.

Author_Institution

Dept. of Electr. Eng., Florida Atlantic Univ., Boca Raton, FL, USA

Volume

144

Issue

4

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

253

Lastpage

255

Abstract

A new type of linear voltage sensor, able to measure constant and alternating voltage in a wide frequency and amplitude range, is presented. The sensor is based on a bending piezoelectric-motor element with an optical fibre attached to it. The deflection of the fibre is sensed by an optical lever and a linear position photosensor. The sensor has a dynamic range of over three decades (71 dB), linearity error less than 0.1% and variable upper amplitude and frequency range. The simple and flexible design allows the proposed sensor to have almost any desired response and sensitivity. It is used mainly for monitoring constant, low- and medium-frequency voltages in power-utility applications

Keywords

fibre optic sensors; photodetectors; power supplies to apparatus; voltage measurement; alternating voltage measurement; bending piezoelectric-motor element; dynamic range; fibre deflection sensing; fibre-optic voltage sensor; flexible design; linear position photosensor; linear voltage sensor; linearity error; low-frequency voltages; medium-frequency voltages; optical fibre attachment; optical fibre sensors; optical lever; power-utility applications; response; sensitivity; wide amplitude range; wide frequency range;

fLanguage

English

Journal_Title

Optoelectronics, IEE Proceedings -

Publisher

iet

ISSN

1350-2433

Type

jour

DOI

10.1049/ip-opt:19971115

Filename

621280