In this paper,the principle of ram accelerator and current situation of ram accelerator research worldwide are introduced at first,then description of the 37mm ram accelerator facility is given,together with preliminary results of hot shot tests.

• 文中首先给出冲压加速器的工作原理、国内外研究现状，以及37m m 口径冲压加速器系统组成，最后给出了热发射不起动（unstart）和热发射实现冲压加速的初步结果