Aiming at the development demands of high-frequency,high-safety and high-consistency ignition for ultra-high-speed weapons ammunition,a new type of insensitive high-transient primer was designed based on semiconductor bridge chip ignition technology.By comparing 4 kinds of semiconductor bridge chip and 2 kinds of packaging structure,and selecting two-stage composite charge composed of lead Stephen acid and lead azide/potassium perchlorate,the semiconductor bridge primer prototype with modular structure was optimized.The primer meets the safety requirements of non-ignition under 1 A 1 W 5 min condition and the match requirement with the ammunition interface.The firing property test results show that the action time of semiconductor bridge primer is not longer than 200µs and the dispersion is not greater than 30µs,compared with the traditional bridge wire electric primer,the instantaneousness and consistency of action time are significantly improved,and the comprehensive performance is better.
维普
万方数据