摘要
为了接收雷电放电通道电流产生的磁场分量,搭建了二维和三维雷电电磁脉冲磁场测量系统,系统主要由磁场信号测量装置和磁场信号传输系统等构成.磁场信号测量装置由内外导体双层结构且面积相同的正交正方形环天线组成,经仿真确定了环天线的实际参数.磁场信号传输系统分为光纤传输系统和屏蔽电缆传输系统,对应基于光隔离技术的和不采用光电转换的两套信号处理电路.经实验检验,各系统运行良好,为判定雷击点和雷电流波形反演等提供了手段.
In order to receive the magnetic field component from the lightning channel current, this paper establishes two-dimensional and three-dimensional lightning electromagnetic pulse （LEMP） magnetic field measurement systems, which mainly consist of magnetic field signal measurement devices and transmission systems. The devices are composed of orthogonal square loop antennas with twolayered structure, outside-inside conductors and same area, the parameters of the antennas are determined by simulation. The signals transmit through optical fiber transmission system and shielding cable transmission system using two different signal processing circuits adopting optical isolation technology and non-photoelectric conversional method. Experiment results prove that the systems performance well, and provide means for the lightning striking point determination and lightning current reconstruction.
出处
《电波科学学报》
EI
CSCD
北大核心
2013年第2期267-271,396,共6页
Chinese Journal of Radio Science
基金
国家自然科学基金资助项目(No.61271106)
关键词
雷电电磁脉冲
三维磁场
二维磁场
环天线
LEMP
three dimensional magnetic field
two dimensional magneticfield
crossed square loop antennas
