高冲击高温下电引信关键元器件可靠性测试

Reliability Test of Key Components of Electric Fuze Subjected to High Impact and High Temperature

为了保证电引信的可靠性和安全性,在设计或生产前有必要对电引信关键元器件进行可靠性测试,文中在分析了电引信关键元器件及其失效模式的基础上选择电引信部分关键元器件:起爆电路用闸流管、抗干扰电路用独石电容和点火电路用固体钽电容,设计测试电路,提出了在高机械冲击和高温条件下对电引信的性能参数进行动态可靠性测试的方案,并进行了试验,试验结果对电引信关键元器件的选型、筛选及后续测试具有一定的参考价值。

In order to ensure reliability and safety of electric fuze, it is necessary to test the key components of electric fuze before design and production, and certain components of electric fuze, whose thyratron switches used in detonating circuits and porcelain capacitor used in anti jamming circuits and tantalum capacitor used in firing circuits, were selected after key components and failure modes had been analyzed, then test circuits were designed. Furthermore, dynamic testing experiment schemes were worked out to test the parameter of certain key components of electric fuze under two special conditions of high temperature and high im- pact. So this test schemes and results can offer important useful value to electric fuze＇ key components selection, filtration and other test.