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Conferences > CLEO > 2004 > CWD > CWD6
  • Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies
  • Technical Digest (CD) (Optica Publishing Group, 2004),
  • paper CWD6

Highly accurate fiber-optic dc current sensor with flexible large-diameter sensing coil

K. Bohnert, P. Gabus, and H. Brändle

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Abstract

We report a clamp-on type sensor for high dc currents based on a novel polarization rotated reflection interferometer. Accuracy within ±0.1% is demonstrated over an extended temperature range. Applications include current measurement at aluminum smelters.

© 2004 Optical Society of America

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