摘要
针对迫击炮弹等弱旋转弹药在使用过程中难以依赖离心力作为独立环境用于保险解除的问题,利用弹丸出炮口的瞬间剧烈的磁场强度阶跃变化这一物理现象,构成了引信解除保险的关键环境特征信号,并设计了一套智能引信安全与起爆控制电路系统。该系统采用模块化架构,集成炮口磁信号处理、电热与电磁驱动控制、时序逻辑判决与起爆管理等功能模块。核心控制器采用FPGA实现时序逻辑控制,通过引入磁传感器与多尺度跳变检测算法,确保关键磁信号在复杂电磁环境下的可靠识别。同时设计电热与电磁驱动电路完成多级解保控制,并通过低功耗高集成度的起爆电路实现多种不同模式(触发、近炸、延期)的起爆信号验证。
To address the issue that weakly rotating munitions(such as mortar shells)cannot reliably use centrifugal force as an independent environmental cue for fuze arming during use,this paper utilizes the sharp,step-like change in magnetic field strength at the moment of muzzle exit as the key environmental signature to arm the fuze.An intelligent fuze safety and detonation control circuit system is designed.This system employs a modular architecture,integrating functional modules for muzzle-exit magnetic signal processing,electro-thermal and electro-magnetic actuation control,and sequential logic adjudication with initiation management.The core controller uses an FPGA to implement the sequential logic control.By incorporating a magnetic sensor and a multi-scale step-change detection algorithm,it ensures the reliable identification of the key magnetic signature within complex electromagnetic environments.Concurrently,electro-thermal and electro-magnetic actuation circuits are designed to achieve multi-stage arming control.Furthermore,a low-power,highly integrated initiation circuit is used to verify detonation signals for various modes(impact,proximity,and delay).
作者
邹雨凡
聂伟荣
ZOU Yufan;NIE Weirong(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)
出处
《机械与电子》
2025年第12期45-51,共7页
Machinery & Electronics
关键词
迫击炮弹
磁信号处理
跳变检测
起爆控制
mortar shell
magnetic signal processing
step-change detection
firing control
