传感技术学报2024，Vol.37Issue(2)：209-215,7.DOI:10.3969/j.issn.1004-1699.2024.02.005
AFOCT系统中敏感光纤器件的老化对系统测量准确性的影响
Influence of the Aging of Sensitive Optical Fiber on the Measurement Accuracy of All-Fiber Optical Current Transformer System
摘要
Abstract
The influence of aging of sensitive optical fiber devices on the measurement accuracy of the AFOCT system is studied.First-ly,based on Faraday magneto-optical effect,the transmission model of the AFOCT system is established with the help of Jones matrices.With Jones matrices of the sensing fiber having birefringence,the measured value of injected current to the system is given.Further,a measurement system is built to experimentally characterize the birefringence of the sensing fiber.Also,the Jones matrix of the sensing fi-ber and the transmission model of the AFOCT system are calibrated to minimize the measurement error of the injected current to the AFOCT system.Finally,the accelerated aging experiment is carried out for the sensing fiber,which corresponds to the actual operation of this fiber for 3 months.Afterwards,the birefringence of the sensing fiber after aging is measured.Then,by applying the calibrated transmission model of the AFOCT system,the erroneous value of the system injection current is obtained.The experimental results show that the obtained system injection current has a relative error of 0.2955％after the 3 months aging of the sensing fiber,which is not ac-ceptable for the actual operation.关键词
全光纤电流互感器/琼斯矩阵/双折射/敏感光纤老化/校准Key words
all-fiber optical current transformer/jones matrix/birefringence/aging of sensitive optical fiber/calibration分类
信息技术与安全科学引用本文复制引用
陈明锟,陈辉,杨肖,彭光强,王越杨,孙豪,陆云清,王瑾..AFOCT系统中敏感光纤器件的老化对系统测量准确性的影响[J].传感技术学报,2024,37(2):209-215,7.基金项目
南方电网直流输电设备状态评估与故障诊断重点实验室开放基金项目 （）
