爆炸箔起爆系统(EFIS)的桥箔爆发后,其能量主要转换为箔蒸汽的热能和平动能、电磁辐射能以及飞片动能。在忽略了热传导、热辐射、磁场以及其他一些影响因素的条件下,建立了优化EFIS中每种能量转换形式的理论计算模型。计算结果表明:模型的计算结果与实验值偏差在±11%以内,飞片动能只占桥箔沉积能量的15%左右,电磁辐射能约占50%。 After the burst of foil from Exploder Foil Primer System (EFIS), its energy is mainly converted into thermal and kinetic energy of foil steam, electromagnetic radiation energy and flying kinetic energy. Ignoring the heat conduction, heat radiation, magnetic field and other factors, a theoretical calculation model of each form of energy conversion in EFIS is established. The calculation results show that the calculated results of the model are within ± 11% of the experimental values, the flying kinetic energy accounts for only about 15% of the deposition energy of the bridge foil, and the electromagnetic radiation energy accounts for about 50%.