感应式静电引信探测技术

Charge-Inducing Electrostatic Fuze Detecting Technology

目的 研究直接检测探测电极的感应电荷获得静电目标信息的静电近炸引信探测技术； 方法 采用短路轴向探测电极感应引信接近静电目标过程中电荷量的变化，并采用电荷放大器检测信号； 利用静电学的基本原理，对其进行了理论推导； 结果 得出探测方程和定距公式，以及增大探测灵敏度的设计准则； 阐述了在该种电极设置下对检测电路的要求以及环境变化对检测结果稳定性的影响； 结论 感应式静电引信探测技术适用于静电目标探测且探测距离远、不受非带电物体的干扰；

Aim To research the passive electrostatic target detecting technology used for electrostatic proximity fuze. Methods A short circuit longitudinal sensor was used to sense the charge variation during approaching the target, and a charge amplifier was used to get the voltage output. Some theoretical work was also done based on the electrostatics. Results The detection equation, distance output expression and the design rules for improving detection sensitivity were obtained. Furthermore the voltage output stability under the circumstance of high humidity or low value input resistance of charge amplifier was discussed. Conclusion The charge inducing electrostatic target detecting technology is suitable for electrostatic proximity fuze with high sensitivity and stability.