撞击发射
撞击发射-
利用二级轻气炮发射铝弹丸超高速撞击铝合金靶板，并选用了高阻尼、高共振频率的压电探头采集远场声发射信号，建立了超高速撞击声发射实验平台。
An experimental platform was build for study on AE in HVI , on which aluminum balls were projected to aluminum alloy targets with two stages light gas gun and signals in far filed were collected by a high damp , high resonance frequency piezoelectricity transducer .