基于有限元分析的静电探测器电极设计

根据静电理论,研究了利用旋叶式三维静电探测器对空中目标进行测向的方法.根据三维静电探测器测得的三路信号可实时给出目标方位角和俯仰角.分析了感应电极叶片数量与感应电流幅值之间的关系,应用有限元分析软件ANSYS对静电探测器电极结构进行了设计仿真计算,对不同叶片数的探测电极的感应电荷变化量进行仿真,分析了边缘效应的影响.根据计算结果给出了静电探测器电极的优化设计参数,为旋叶式三维静电探测器电极设计提供基础和指导.

Design for Electrostatic Detection Electrode Based on Finite Element Analysis

Based on electrostatic theory, the air target direction finding method using votary vane 3D electrostatic detector is studied in this paper. Three-channel signals detected by 3D electrostatic detector can provide the azimuth angle and elevation angle of the target in real-time. Analysis of relationship between leaf number of inductive electrode and inductive current amplitude was given. The finite element analysis software, ANSYS, was used to design and simulate the structure of detecting electrodes. The quantity of induced charge on detection electrode was simulated for different vanes. The effect of edge effect was also analyzed. The calculation result gives the optimum designing parameters of electrostatic detector, which provides a basic guidance for electrode design of rotary vane 3D electrostatic detector.