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推导了耦合式电容引信探测器在遇目标过程中电极间等效电容的表达式和等效电容对弹目接近距离r的变化率。分别针对弹体做电极、弹体不接入电路、弹体接电路“地”3种工作模式,进行了探测器动态目标信号特征的理论分析和性能比较。通过对电极间等效电容及其变化率表达式的分析,探讨了提高探测器灵敏度的电极设计思想。还就其动态目标特性曲线进行了讨论。
The expression of the equivalent capacitance between the electrodes and the rate of change of the equivalent capacitance to the close distance r of the projectile are deduced when the coupled capacitor fuze detector encounters the target. According to the three operating modes of the electrode, the projectile non-access circuit and the projectile connecting circuit “ground” respectively, theoretical analysis and performance comparison of the dynamic target signal characteristic of the detector are carried out. By analyzing the expression of the equivalent capacitance between electrodes and its rate of change, the electrode design idea to improve the detector sensitivity is discussed. The dynamic target characteristic curve is also discussed.