撞击发射
![撞击发射](../cache/1528195.jpg)
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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 .