The fuze safety system is not just an absolute sub-system in fuze, and is not equivalent to safety and armingdevice.
引信安全性设计是引信的核心技术之一，引信安全系统是引信安全性设计的主要体现形式。
2
Based on the characteristic analyses of fuze armingdevice, a special acoustic transmission device is selected to obtain the state signal of the device.
根据引信保险机构系统特性分析，选择驻极体传声器作传感器，从而获得引信保险机构的状态信号。
3
The frame of electro-mechanical safety and armingdevice (S&A) is established, and the electro-mechanical S&A for the mortar shell fuze is designed at the end of the paper.