本文从可靠性的角度出发,分析了解决压电引信弹道安全和发火可靠性之间矛盾的可能性和方法;从中引出了压电引信“机械灵敏度”和“压电灵敏度”的概念,以避免使用含义不确切的“低灵敏度性能”的说法。对压电机构弹道安全性的计算方法作了简要归纳和部分修正。最后提出了在电路上加装钝感开关的必要性和可能性。 In this paper, from the reliability point of view, this paper analyzes the possibility and method of resolving the contradiction between safety and ignition reliability of piezoelectric fuze ballistic missile. The concept of “mechanical sensitivity” and “piezoelectric sensitivity” of piezoelectric fuze is deduced to avoid Use imprecise “low sensitivity performance” argument. The calculation method of the ballistic safety of the piezoelectric mechanism is briefly summarized and partially revised. Finally, the necessity and possibility of adding a dead-switch in the circuit is proposed.