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�������պ����ѧѧ�� 2011, Vol. 37 Issue (11) :1384-1387,1394    DOI:
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Electromagnetic interference caused by aerospace explosives
Cao Jingyang, Xie Shuguo, Su Donglin, Ma Zhichao*
School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� Simulative experiments on the ground were carried out to measure the radiation by chemical explosion of aerospace explosives in stage separation and evaluate the impaction on the electronics in the rocket. Electromagnetic pulses by different explosives were captured by a rod antenna and measured by a real time analyzer. The results show that radiation increases as the energy of the explosion. When using a mild linear shaped charge,considerable pulses were recorded in dozens of milliseconds after the separation, with the frequencies around megahertz and magnitude about several V/m on single frequency. Electromagnetic environment inside and outside the rocket were recorded and compared by simple dipoles, and current pulses induced on the circuits inside the rocket were also measured. The conclusion could direct the anti-interference design on the inner electronics of launch vehicle.
Keywords�� chemical explosion   explosive   electromagnetic pulse   electromagnetic interference   stage separation     
Received 2010-07-12;

�����ص�����о���չ�ƻ�������Ŀ(2010CB731800); ������Ȼ��ѧ����������Ŀ(60831001,F010610)

About author: �ܾ���(1983-),��,ɽ���޳���,��ʿ��,caojingyang@ee.buaa.edu.cn.
�ܾ���, л����, �ն���, ���dz�.�����Ʒ��ը����ĵ�Ÿ��Ų���[J]  �������պ����ѧѧ��, 2011,V37(11): 1384-1387,1394
Cao Jingyang, Xie Shuguo, Su Donglin, Ma Zhichao.Electromagnetic interference caused by aerospace explosives[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2011,V37(11): 1384-1387,1394
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