爆炸箔起爆器桥箔夹角优化设计

为了确定桥箔夹角对爆炸箔起爆器能量利用率的影响,设计并用离子刻蚀法制备了30°、45°、60°、75°和90°共5种不同夹角的桥箔,研究了其电爆炸性能。结果表明:在同一充电电压下,夹角为45°桥箔的爆发电流和峰值电流最大;爆发电流密度与飞片速度关系的分析及爆发功率和爆发时间与峰值电流时间差的比较显示,45°夹角的桥箔有能量利用率较高和发火能量较低的良好性能。

Optimal Design of Foil Bridge Included Angle of Exploding Foil Initiator

In order to study the effect of foil bridge included angle on the energy efficiency of exploding foil initiator,five exploding foil bridges of included angle as 30°,45°,60°,75° and 90° were designed and fabricated by an ion etching method. Their electrical exploding performances were investigated. Results show that under the same discharge voltage,the burst current and peak current produced by foil bridge with an included angle of 45° is the largest. The analysis of the relationship between the burst current and the flyer velocity and the comparison of burst power and difference between the burst time and the peak time reveal that the exploding foil bridge with included angle of 45° has a better performance of higher energy efficiency and lower fire energy.