Fiber Bragg grating AC current measurement based on fiber coupler demodulation

Yuan Yao; Benshun Yi; Xiaopeng Dong; Yutao Ling

doi:10.1117/12.806956

2 February 2009 Fiber Bragg grating AC current measurement based on fiber coupler demodulation

Yuan Yao, Benshun Yi, Xiaopeng Dong, Yutao Ling

Proceedings Volume 7160, 2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications; 716027 (2009) https://doi.org/10.1117/12.806956
Event: International Conference of Optical Instrument and Technology, 2008, Beijing, China

Abstract

The measurement of alternating current (AC) is realized by using fiber Bragg grating (FBG), giant magnetostriction material (GMM), and the technology of fiber coupler demodulation (fiber wavelength division multiplexing filter, FWDMF). The magnetostrictive effect of GMM, the theoretical analysis of the FBG current measurement and the interrogation technology of FWDMF are introduced as well. The sensing unit of AC current measurement is constructed with magnetostrictive material and FBG. The feasibility of AC current measurement by using this method is proved, when the AC exciting current is in the scope of 0~2A.

Citation Download Citation

Yuan Yao, Benshun Yi, Xiaopeng Dong, and Yutao Ling "Fiber Bragg grating AC current measurement based on fiber coupler demodulation", Proc. SPIE 7160, 2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications, 716027 (2 February 2009); https://doi.org/10.1117/12.806956

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