Electric and magnetic field sensing for high-voltage applications

Thomas Bosselmann

doi:10.1117/12.281241

24 September 1997 Electric and magnetic field sensing for high-voltage applications

Thomas Bosselmann

Proceedings Volume 3099, Micro-optical Technologies for Measurement, Sensors, and Microsystems II and Optical Fiber Sensor Technologies and Applications; (1997) https://doi.org/10.1117/12.281241
Event: Lasers and Optics in Manufacturing III, 1997, Munich, Germany

Abstract

Electric and magnetic fields can be measured optically, either directly via Pockels and Faraday effect or indirectly via Piezo effect. In high voltage applications fiber optic sensors are especially attractive for their ability of easy potential separation. For electric fields the Pockels effect in BSO, BGO crystals is mostly read out polarimetrically. The current is mostly measured via the Faraday effect in fibers or bulk optics polarimetrically, but also by means of a Sagnac interferometer. Electrooptic voltage and magnetooptic current sensors have quite a matured state of development and shown their benefits in a lot of field tests and installation in high voltage switch gears.

Citation Download Citation

Thomas Bosselmann "Electric and magnetic field sensing for high-voltage applications", Proc. SPIE 3099, Micro-optical Technologies for Measurement, Sensors, and Microsystems II and Optical Fiber Sensor Technologies and Applications, (24 September 1997); https://doi.org/10.1117/12.281241

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