Nonlinearity test and compensation of the passive AFOCTs scale factor

摘要：

　　In order to compensate the nonlinear error of passive all-fiber optic current transformers (AFOCT) in the case of large current input,a new method based on the inverse function correction is presented.Taking the feature of the AFOCTs nonlinear response into account,a high-order signal is produced by an analog circuit,thus the scale factor of the AFOCT could be compensated quickly and accurately.Experimental test shows that when the phase difference between the two interference light paths is within the range of 0~20°,the output of the AFOCT could be compensated to maintain the GB/T 20840.8 0.2 accuracy class.

关键词： All-fiber optic current transformer nonlinear compensation analog multiplier

作者: Xiao Yue-yu Yan Jin-kui Peng Lei

作者单位: Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Communication and Information Engineering,Shanghai University,Shanghai,P.R.China

会议类型: 国际会议

会议名称: 2013 2nd International Conference on Computer Science and Electronics Engineering(ICCSEE2013)(2013年第二届计算机科学与电子工程国际会议)

会议地点: 杭州

会议语种:英文

页码: 523-526

在线出版日期: 2013-03-22（万方平台首次上网日期，不代表论文的发表时间）