Key points are not available for this paper at this time.
A fiber optic current sensor based on a polarization-rotated reflected interferometer has been constructed. A special spun highly birefringent fiber is designed and achieved for the sensor by heating and spinning commercial linearly birefringent fiber. In contrast with conventional fibers, the fiber integrates a function of a quarter wave plate. Particularly, fabricating and working principle of the current sensor head using the fiber are expounded. The sensor achieves an accuracy with 0. 5% and good linearity shown in temperature dependence (a temperature drift of 0. 008%/^ C) over a temperature range 40^ C–70^ C. Further, under simple temperature compensation, the sensor accuracy is within0. 1\%over in a wide range of current and temperature ranges.
Peng et al. (2013) studied this question.