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对电子系统强电磁环境实验效应检测技术研究现状进行了系统的研究分析,提出通过对内部电路节点电压信号实时监测实现无人机电子系统强电磁环境效应检测判断的方法。设计了以阻抗变换和电光转换电路为核心的光纤输出型电压探头,实现1 MΩ高输入阻抗、DC–450 MHz带宽、数百m传输距离等技术要求。在无人机系统强电磁脉冲环境实验中利用所设计的电压探头实现了无人机舵机、飞控、链路等电路节点工作电压信号波形的远程监测,获取了无人机电路节点耦合的电压脉冲波形。
The current situation of the research on the experimental effect detection technology of strong electromagnetic environment in electronic system is systematically studied and analyzed. The method of detecting and judging the strong electromagnetic environment effect of the unmanned aerial vehicle electronic system through the real-time monitoring of internal circuit node voltage signal is proposed. A fiber output voltage probe with impedance transformation and electro-optic conversion circuit as its core is designed to meet the technical requirements of 1 MΩ high input impedance, DC-450 MHz bandwidth and transmission distance of hundreds of m. In the experiment of strong electromagnetic pulse environment of UAV system, the working voltage signal waveforms of UAV rudder, flight control, link and other circuit nodes were monitored remotely by using the designed voltage probe. The coupling of UAV nodes Voltage pulse waveform.