Electrical current metering with a dual interferometric configuration and serrodyne signal processing

Author

Jorge, P.A.S. ; Caldas, P. ; Ferreira, L.A. ; Lobo Ribeiro, A.B. ; Santos, J.L. ; Farahi, F.

Author_Institution

INESC, Unidade de Optoelectronica e Sistemas Electronicos, Porto, Portugal

fYear

2002

Firstpage

495

Abstract

Theoretical and experimental results were presented which validated a new dual interferometric configuration with serrodyne processing for the remote sensing of electrical current. Linearity and waveform reproduction at 50 Hz were observed and a current resolution (/spl ap/22.4 A/sub rms/Hz/sup - 1/2 /) was obtained. The utilization of the proposed interferometric concept to simultaneously perform metering and relaying current measurements was also addressed.

Keywords

electric current measurement; fibre optic sensors; light interferometry; optical information processing; 50 Hz; current resolution; dual interferometric configuration; electrical current metering; linearity; optical fibre sensors; remote sensing; serrodyne signal processing; waveform reproduction; Optical feedback; Optical interferometry; Optical modulation; Optical polarization; Optical reflection; Optical retarders; Optical saturation; Optical sensors; Sagnac interferometers; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Sensors Conference Technical Digest, 2002. Ofs 2002, 15th

Conference_Location

Portland, OR, USA

Print_ISBN

0-7803-7289-1

Type

conf

DOI

10.1109/OFS.2002.1000711

Filename

1000711