The main influence factors of exploding bridge foil were studied in order to improve energy utilization of the explosion foil initiator. “Square” and “curving” shaped bridge foils were fabricated using magnetron sputtering and chemical etching techniques, and the key dimension of the bridge foil was measured using surface profiler. Commercial software MATLAB was employed to calculate the burst current, burst voltage, and energy deposition. Simulation results were in good agreement with experiment data. In this study, the energy deposition ratio of “square” shaped bridge is between 45%–50%, while the value of “curving” shaped bridge is between 55%–75%.
Received 15 April 2013Accepted 03 June 2013Published online 19 June 2013
The financial support of the project was provided by a foundation item from the General Armament Department of PLA (9140A0507111BQ0107) and the Project of State Key Laboratory of Explosion Science and Technology, People's Republic of China (YBKT13-03).