超高速碰撞微波辐射强度测量

马平; 柳森; 黄洁; 石安华; 苗俊刚

doi:10.11858/gywlxb.2008.02.018

超高速碰撞微波辐射强度测量

doi: 10.11858/gywlxb.2008.02.018

1.
中国空气动力研究与发展中心超高速空气动力研究所，四川绵阳 621000；
2.
北京航空航天大学电子工程学院，北京 100083

详细信息

通讯作者:
马平

计量
- 文章访问数: 13887
- HTML全文浏览量: 767
- PDF下载量: 913
出版历程
- 收稿日期: 2007-06-14
- 修回日期: 2007-11-12
- 发布日期: 2008-06-05

Microwave Radiation Measurement on Hypervelocity Impacts

1.
Hypervelicity Aerodynamics Institute, China Aerodynamics Research & Department Center, Mianyang 621000, China;
2.
School of Electronic Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

More Information

Corresponding author: MA Ping

摘要

摘要: 针对超高速碰撞物理现象研究需要，为了确认超高速碰撞过程中的电磁辐射信号能作为超高速碰撞产生的可探测物理量之一，利用研制的8 mm微波辐射计在中国空气动力研究与发展中心FD-18A超高速碰撞靶开展了超高速碰撞过程中的微波辐射强度测量初步试验研究。对试验测量方案进行了介绍，获得了弹丸超高速撞击半无限铝靶和半无限铜靶时产生的微波辐射强度测量试验结果。弹丸为直径5 mm 的LY12铝球，撞击速度1.98~4.3 km/s，撞击角为0，结果表明：在本试验条件下，超高速碰撞产生了明显的微波辐射强度，材料的不同导致碰撞过程中产生的微波辐射强度差别较大。
- 超高速碰撞 /
- 微波辐射 /
- 测量
Abstract: The microwave radiation intensity measurement on hypervelocity impacts were conducted with the 8 mm microwave radiometer at the hypervelocity impact facility at HAI, CARDC. The paper presented the test results of the microwave radiation resulted from hypervelocity impacts on the semi-infinite aluminum and semi-infinite copper target materials. The projectiles were LY12 aluminum spheres with impact velocity ranged from 1.98 km/s to 4.3 km/s. The projectiles were 5 mm in diameter. The impact angle is 0. The microwave radiation intensity were measured in the approach of fixing projectiles, varying projectile velocity and target materials. The results showed that the hypervelocity impact induced microwave radiation could be detected obviously under test conditions. The microwave radiation intensity of the semi-infinite copper target materials duo to hypervelocity impacts was higher than that of the semi-infinite aluminum target materials under the same conditions.
- hypervelocity impacts /
- microwave radiation /
- measurement

HTML全文

参考文献(9)

Bianchi R, Capaccioni F, Cerroni P. Radiofrequency Emission Observed during Macroscopic Hypervelocity Impact Experiments [J]. Nature, 1984, 308: 830-832.

Takayo T, Murotani Y, Toda T, et al. Microwave Generation due to Hypervelocity Impact [A]//51th IAF Congress, IAA-OO-IAA [C]. Riode Janeiro, Brazil, 2000.

Takano T, Murotani Y, Toda T. Microwave Emission due to Hypervelocity Impacts and Its Correlation with Mechanical Destruction [J]. J Appl Phys, 2002, 92(9): 5550-5554.

Liu S, Li Y. The Ballistic Limit Experiments on the Whipple Shield [J]. Journal of Astronautics, 2004, 25(2): 205-207. (in Chinese)

柳森, 李毅. Whipple防护屏弹道极限参数试验 [J]. 宇航学报, 2004, 25(2): 205-207.

Zhang Z Y. A Theoretical Analysis and Scale Shrinking Measurement of the Microwave Radiation Characteristic of Metal Objects [J]. J Huazhong Univ Sci Tech, 1994, 22(4): 85-88. (in Chinese)

张祖荫. 金属目标微波辐射特性的理论分析和缩比测量 [J]. 华中理工大学学报, 1994, 22(4): 85-88.

Lai S T, Murad E, McNeil W J. Hazards of hypervelocity Impacts on Spacecraft [J]. Spacecraft Rockets, 2002, 39(1): 106-114.

McDonnell J A M. Cosmic Dust [M]. New York: Wiley, 1987.

施引文献

资源附件(0)

访问统计