Compensation Of Intrinsic And Environmental Effects For Fiber Optic Current Transformer

Fiber optic current transformer /FOCT/ offers several well known advantages for power systems applications and pulse current - plasma measurements. The polarimetric sensor is based on measurement of Faraday effect in single mode fiber. Investigations in many labs were started more then ten years ago but the technology is not established yet, The intrinsic , bending , external stress induced, vibration induced birefringence exist in single mode fiber applied in FOCT. These effects causes many problems for the perfor mance of FOCT device. The ways of confirming temperature stability of whole optoelectronic unit are still not fully worked out. The paper presents "state of art" of interfering effects compensation methods and also describes the investigation of standard and "single ended" FOCT performed by authors. Some prospects for the future industrial applications are considered.