Title :
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
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;
Conference_Titel :
Optical Fiber Sensors Conference Technical Digest, 2002. Ofs 2002, 15th
Conference_Location :
Portland, OR, USA
Print_ISBN :
0-7803-7289-1
DOI :
10.1109/OFS.2002.1000711
