Abstract

We propose an open-loop fiber optic current sensor (FOCS) using FBG and a 2-g bar of Terfenol-D with enhanced sensitivity for high-voltage transmission lines. The developed FOCS presented a linearity error of 2.35%, a resolution of 0.57% FSR, and a transient response of 1.5 ms in the range of 25-400 Arms.

© 2020 The Author(s)

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