Title :
Highly accurate fiber-optic dc current sensor with flexible large-diameter sensing coil
Author :
Bohnert, K. ; Gabus, P. ; Brändle, H.
Author_Institution :
ABB Switzerland Ltd., Baden, Switzerland
Abstract :
We report a clamp-on type sensor for high dc currents based on a novel polarization rotated reflection interferometer. Accuracy within /spl plusmn/0.1% is demonstrated over an extended temperature range. Applications include current measurement at aluminum smelters.
Keywords :
aluminium; electric current measurement; fibre optic sensors; light interferometers; smelting; Al; aluminum smelters; clamp-on type sensor; fiber-optic dc current sensor; large-diameter sensing coil; polarization rotated reflection interferometer;
Conference_Titel :
Lasers and Electro-Optics, 2004. (CLEO). Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
1-55752-777-6
