绝缘垫在火箭弹静电防护中的作用

针对电发火弹药静电放电中的绝缘垫作用问题,以63式130 mm火箭弹为例,采用相对静电感度测试系统测试两种电火工品不同条件下50%的临界发火电压.使用升降法统计不同条件下50%临界发火电压估计值,通过比较相同条件下有无绝缘垫时的电压,发现二者的差值在标准误差范围内.这表明可以将弹体所接受的能量视作全部作用于火工品上,绝缘垫起不到防静电作用,必须采用其它的静电防护措施杜绝电发火弹药的意外发火.

Function Study of Insulated Cushion of Rocket Projectile on Protection from ESD

To the problem of insulated cushion's function in the study of electric ignition projectile, this article took 63 model 130 mm-roket for example, and relative static sensitivity test system was used to test the 50% critical ignition voltage of two electric explosive devices(EEDS) on all conditions of electrostatic discharge(ESD). And the up-and-down method was used in the procedure of testing and data processing, the access of 50% ignition voltage was counted. The difference of two results were found in the scope of standard error through comparing the voltage on the same conditions. This suggests the energy that the projectile body absorbs may be regarded as being absorbed fully by the EED. And the insulated cushion has not the function of protection from ESD. And another measures should be applied to avoiding the electric ignition projectiles to be lighted accidently.