【摘要】 用单极天线感应外界电场信号设计电光转换电路,信号通过光进行传输,最后通过光电转换,用示波器观察电磁脉冲时域电信号波形。通过时域、频域实验验证,整个系统符合目前核电磁脉冲国际标准的时域和频域要求,有较好信噪比,对相关的电磁脉冲环境研究和电磁兼容研究有重要意义。更多还原

【Abstract】 In this paper,we report the design and test of a wideband sensor for measuring transient electric field,which is consist of a monopole antenna,high input resistance receiving circuit,electro-optic modulating circuit and fiber links.In the end,a photoelectric conversion is conducted and the E-field signal can be watched on the oscilloscope.Test results show that it can satisfy time-domain and frequency-domain requirements.The sensor may play an important role in the EMP and EMC research.更多还原