Fiber optic current sensors work by detecting changes in light as it interacts with a magnetic field created by an electrical current. These sensors rely on the Faraday Effect, which occurs when a magnetic field causes a rotation in the polarization of light passing through an. I: Current (A) EJ Casey & CH Titus: US Patent 3324393, 1967 Jose Miguel Lopez-Higuera: Handbook of Optical Fiber Sensing Technology, John Wiley & Sons, 2002. P 603 Radiation absorption excites an orbital electron to a higher energy level. It has broad application prospects in high voltage, ultra-high voltage applications and smart grid. The basic principle of Fiber Optic Current Sensors (FOCS) and Optical Current Transformers (OCTs) is to measure polarization rotation due to the Faraday effect. These. We have experimentally developed a hybrid-structure multi-channel all-fiber current sensor with ordinary silica fiber using fiber loop architecture. The purpose of the hybrid-structure.
