光纤传感电流监测中光纤套筒周围的电磁场分布研究  

Magnetic field sensitivities of optical fiber sleeves for full-fiber optical current sensor

作　　者：毛辰飞[1] 张学典[1] 常敏[1] 鲁敦科[1] 侯英龙[1] 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《光学仪器》2014年第1期52-57,共6页Optical Instruments

基　　金：国家973计划(2010CB327800);国家科技支撑项目(2011BAF06B01;2012BAI23B00)

摘　　要：介绍了一种用COMSOL软件模拟大电流磁场的方法,并提供了光纤电流传感器中传感元件所放置的套筒的材料的选择依据,本方法具有实用性及可靠性。根据法拉第电磁感应定律,通过COMSOL软件,建立了大电流直导线模型,利用所建立的模型,分别用理论和实验模拟了大电流周围磁场分布。由光纤传感器中不同套筒材质导线周围的磁场分布情况对比表明:磁场对材料镍制作的套筒的置入不敏感。A method of simulating the distribution of magnetic field around the strong current by using the software COMSOL was introduced,and a reliable and practical selective basis for choosing the materials of sleeve around the strong current in the full-fiber optical current sensors was accordingly provided.Based on the Faraday＇s law of electromagnetic induction,the large current straight conductor model was established by the use of COMSOL software.With the help of this model,the distribution of magnetic field around the strong current was simulated respectively both in theory and in practice.The sleeve material in the fiber optic sensor distribution under different conditions of the magnetic field around the wire showing that the magnetic field is not sensitive to materials made of nickel sleeve placement.

关 键 词：COMSOL软件 大电流 磁场分布 光纤传感器 

分 类 号：TH741.4[机械工程—光学工程]