脉冲磁场传感器频率特性分析与拓宽频带方法

Analysis on frequency characteristics and means to broaden bandwidth of pulsed magnetic field sensor

在针对电磁脉冲毁伤效能的研究中,提出一种采用线圈型磁场传感器的方法来测量电磁脉冲。根据线圈型磁场传感器测量脉冲磁场的基本原理,分析了其工作时的等效电路和频率特性,根据探测线圈归一化传递函数分析负载电阻对测量频率范围的影响,在此基础上就如何拓宽探测线圈的工作频段,提高传感器响应的灵敏度和稳定性进行了讨论,并提出相应的改进方法,并通过实验进行验证。

Magnetic field measurement is an important aspect in the research on the damage of electromagnetic pulse effect,a coil type magnetic field sensor is presented to measure electromagnetic pulse. According to coil transfer function,effect of load resistance on measurement frequency range is analyzed. On this basis,the question of how to broaden working frequency of detecting coil and improve sensitivity and stability of sensor response are discussed,and put forward corresponding improvement method.