โ Scribed by Z.P. Wang; S.Q. Zhang; L.B. Zhang
No coin nor oath required. For personal study only.
The Faraday effect is becoming widely used as an optical method of measuring electric current or magnetic field. It is particularly advantageous where the measurements must be made at high voltage or in the presence of electromagnetic interference, and where speed or stability are considerations. In this paper, the present state of research into Faraday-effect current sensors is outlined, eight possible approaches for overcoming the problems associated with the linear birefringence inside the fibres of optical current sensors are simply introduced, recent advances in this area are reviewed, and possible prospects are considered.
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