KEYED-POWDER GUN FOR THE OBLIQUE-IMPACT SHOCK STUDY OF SOLIDS IN SEVERAL 10 s OF GPa REGION.
KEYED-POWDER GUN FOR THE OBLIQUE-IMPACT SHOCK STUDY OF SOLIDS IN SEVERAL 10 s OF GPa REGION.
复制标题
用于在几个 10 秒 GPa 区域内进行固体斜冲击冲击研究的键控火药枪。
DOI：
10.1063/1.1137729
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发表时间：
1984
影响因子：
1.6
通讯作者：
K. Nagayama
中科院分区：
文献类型：
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作者：
T. Mashimo;Shinobu Ozaki;K. Nagayama
研制了一套用于在几十秒GPa范围内对固体进行精确斜冲击研究的实验装置。第一次生产了一种带有键控发射器的火药枪（键控火药枪），它能够在不旋转的情况下将重量为20-40 g的射弹加速到甚至大于2 km/s的速度。该枪有一个双壁结构发射器，其枪口形状类似于一个古老的月亮（基本口径为27毫米）。通过反射光方法测量发射器中的弹丸速度，包括用于冲击波测量的逻辑触发电路，与该枪相结合。可以进行平行板倾斜角度小于0.18°的平行板冲击实验（正向型或斜向型），通过电学和光学方法可以精确测量冲击速度和冲击波数据。此外，键控粉末枪应该找到其他广泛的应用，例如，进行超高速空气动力学模拟研究
Experimental equipment for the precise oblique‐impact shock study of solids in several 10 s of GPa region was developed. A powder gun with a keyed launcher (keyed‐powder gun), which is capable of accelerating projectiles of 20–40 g in weight without rotation to velocities of even greater than 2 km/s, was produced for the first time. The gun has a double‐wall structure launcher with a key whose muzzle shape resembles an old moon (basic bore diameter is 27 mm). Measurement of projectile velocities in the launcher by the reflected‐light method, including a logic trigger circuit for shock‐wave measurements, is combined with this gun. It was confirmed that the parallel‐plate impact experiment (normal type or oblique type), in which the tilt angle of parallel plates is less than 0.18° could be performed, allowing precise measurements of impact velocity and shock‐wave data by electrical and optical methods. Further, the keyed‐powder gun should find other widespread applications, e.g., for hypervelocity‐aerodynamic simulation study.