The measurement of alternating current (AC) is realized by using fiber Bragg grating (FBG), giant magnetostriction material (GMM), and the interrogation technology of Fabry-Perot (F-P) filter. Based on the theoretical analysis of the FBG current measurement, the magnetostrictive effect of GMM, and the interrogation technology of F-P filter are introduced as well. The sensing unit of AC current measurement is constructed with GMM and FBG. The feasibility of AC current measurement by using this method was veri...
