| Title |
Polarimetric fiber-optic current sensor system using a twisted fiber sensing coil |
| Authors |
Kee-Hyuck Kim ; Min-Ho Song |
| Keywords |
Polarimetric fiber-optic current sensor ; Twisted fiber ; Linear birefringence |
| Abstract |
We developed a polarimetric fiber-optic current sensor system for protective relaying usage. A fiber sensing coil that consisted of a length of twisted fiber and a FRM (Faraday rotator mirror) was used in order to suppress the linear birefringence effect. From the experiments with various sensing coil configurations and environmental conditions, the proposed current sensor system showed feasibility of suppressing environmental noises, and the obtained measurement stability was less than ±3% at rated primary current. |