电炮驱动Mylar膜飞片完整性实验研究

利用铜靶验证法研究了加速腔材料、结构以及桥箔尺寸与加速腔尺寸的匹配关系等因素对电炮驱动飞片完整性的影响。实验结果表明,对于每秒数公里的高速下,加速腔材料、预制刃口与否对飞片的完整性影响不大,当加速腔尺寸稍小于桥箔尺寸时能够获得非常完整且呈圆形的飞片。光纤探针测量结果显示,此条件下,飞片具有较好的平面度,从该角度讲,电炮是一种较好的平面波发生器。

Experimental Study on the Integrality of Mylar Flyer Driven by Electric Gun

By means of technique of validating copper target,the effects of materials and structure of barrel as well as of the matching relationship between the sizes of bridge foil and barrel on the integrality of the flyer driven by electric gun were studied.The experimental results show that the materials of the barrel and whether the cutting edge preliminarily made or not have no noticeable influences on the integrality of the flyer in the condition of the flyer with velocity of several kilometers per second.When the size of barrel is a little smaller than that of the bridge foil,a full and circle flyer is gained.In this condition,the flatness of the flyer is good,which is demonstrated by the results measured with the technique of optical fiber probes.The results of the flatness and completion of the flyer show that electric gun is a good plane wave generator.