The Collector is a key part of the Fiber Electronics current transformer and the realization of the digital collection is also far - reaching influence to the improvement of the accuracy of it.

While occurrence of optical current transducers (OCT) has resolved the problems.

An approach to producing and processing quadrature dual-path optical signal is pre-sented to meet the real-time processing requirement of electric power transient protection with optical current transducers.

A new type of fiber optical current sensor;

Optimum design of fiber optical current sensor;

A novel bulk type of optical fiber current transducer (OFCT) is presented, in which the state of polarization of the fiber is auto compensated.

Noise suppression of fiber optic current transformer system based on robust control

For improving fiber optic current transformer system’s dynamic response,the closed-loop detection principle of the fiber optic current transformer was analyzed,a system model was established,and its parameter uncertainty was considered.