旋转式气动发电机作为速度传感器探讨

Discussion on Air Driven Revolving Generator as Velocity Transducer

作为引信电源,利用弹丸飞行产生的气动能来发电的旋转式气动发电机已广泛地应用于各种炮弹引信中,将其作为速度传感器的研究也引起引信同行的关注。通过对旋转式气动发电机的组成、工作机理、运动方程的分析,提出作为弹丸飞行速度的识别信号,发电机的频率信号优于其输出电压信号;并以此结论为基础,推导出了弹速与发电机频率之间的表达式。

As power supply,air driven revolving generator generates electricity by the ram air energy available during the projectile flight and is widely used for the fuze of for all projectiles. As velocity transducer, it has been thought by much of researchers in fuze field. By analyzing its constitutent, work principle and revolving equation, the paper draws a conclusion that its frequency signatures are superior to its voltage signatures when the air driven revolving generators is used as the flying velocity sensor of a projectile, based on which, the expression for the projectile velocity and the generator frequency is derived.