CHENG Li-qing, ZHOU Wang-min, TIAN Fei, et al. Experimental study on a ferromagnetic ring fiber grating current sensor[J]. 2013, 32(10): 24-26. DOI: 10.13873/j.1000-97872013.10.001.
A kind of fiber grating current sensor is proposed based on fiber Bragg grating(FBG)
ferromagnetic ring and giant magnetostrictive materials(GMM).The magnetic field distribution characteristic of the air gap of ferromagnetic ring is analyzed by using finite element method and experimental measurement methods.Experimental investigation shows that the current sensor has excellent linearity and high precision of measurement
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