Determination of Response Threshold of Optical Current Transformer

For an all-electric ship, power system is not only the energy source of power distribution, but also the energy source of ship driving system, so it is the development direction of ship in future. The optical current transformer is very important in all-electric ship. It´s necessary to do some further microminiature research on the optical current transformer used in all-electric ship. The first problem is relationship between sensing length and sensing performance has been studied in this paper. According to the relationship between accuracy and resolution, resolution threshold has been presented and defined as lower limit of magneto-optical material length.