压敏电阻对半导体桥火工品电爆性能的影响  

Electro-explosive Performances of SCB Igniter with Varistor

作　　者：杜培康[1] 谭明 李勇[1] 周彬[1] 王军[1] 

机构地区：[1]南京理工大学化工学院,江苏南京210094 [2]四川华川工业有限公司,四川成都610106

出　　处：《含能材料》2015年第8期781-786,共6页Chinese Journal of Energetic Materials

基　　金：国防"973"子专题(6131290104)

摘　　要：压敏电阻能有效抑制浪涌电压,可用于火工品电磁防护。为研究压敏电阻对半导体桥(SCB)火工品电爆性能的影响,本研究在电容放电(47μF、22 V)与恒流(100 ms)激励条件下测试了并联压敏电阻前后典型尺寸SCB火工品100μm(L)×400μm(W)×2μm(T)和低发火能量SCB火工品20μm(L)×100μm(W)×2μm(T)的爆发时间和爆发消耗能量的变化规律。电容放电实验(47μF、22 V)结果 t检验表明,并联压敏电阻前后的典型SCB火工品的爆发时间和爆发能量均无显著性变化;对于低发火能量SCB火工品,并联击穿电压较低的压敏电阻时,爆发所需能量升高14%,而爆发时间无显著性变化。而恒流(100 ms)激励实验结果表明,压敏电阻对两种SCB火工品电爆性能均无显著性影响。Since the electromagnetic environment is getting more complex,the research of igniter electromagnetic protection receives extensive attention.In order to study the electro-explosive performances variations,the variation of the firing time and the firing-required energy were measeured under the condition that the SCB igniters were in parallel with varistors,and capacitor discharge and constant current experiments were adopted when the capacitance（47 μF） was charged to 22 V.Results show that there is no significant difference in the above parameters after the typical SCB igniter in parallel with varistor.But the low-energy SCB igniters are affected by varistor with lower breakdown voltage in the firing-required energy.The firing-required energy increase by 14%,while the firing time does not change.On the contrary,in the constant current duration of 100 ms experiment,varistor has no significant influences on SCB firing time and firing-required energy,indicating that varistor does not affect the SCB igniters＇ electro-explosive performances dramatically when employed for the electromagnetic protection of the SCB igniters.

关 键 词：火工品 半导体桥(SCB) 压敏电阻 电爆性能 

分 类 号：TJ450[兵器科学与技术—火炮、自动武器与弹药工程]