强激光与粒子束, 2014, 26 (4): 043201, 网络出版: 2014-04-24   

电磁干扰下时间分辨测量系统信号外触发技术

External trigger technique of high speed signal of beam parameters measurement system under strong electromagnetic interruption
作者单位
中国工程物理研究院 流体物理研究所, 四川 绵阳 621900
摘要
在实验的基础上给出了束参数时间分辨测量系统的实验布局和特点,分析高压电磁干扰对直线感应加速器中时间分辨测量系统外触发性能的影响和变化规律; 进一步探讨系统高压电磁干扰后的抑制措施。针对电磁空间干扰情况,主要通过采用光纤传输控制信号的措施,能很好地传输窄脉冲,信号延时抖动小于2 ns,达到了高速信号的可靠传输要求,采用嵌入式控制器既解决了抗电磁干扰的要求,也满足了束参数时间分辨测量系统的使用要求。
Abstract
Strong electromagnetic interference in the high power linear induction accelerator (LIA) is disadvantageous to electron-beam-parameters measurement and diagnosis system. In this paper, electromagnetic interference effect on time-resolved electron-beam-parameter measurement system is analyzed, and the method for controlling the electromagnetic interference is discussed. With fiber embedded technology, narrow impulse signals are dependably transmitted, signal delay jitter is less than 2 ns. The experiment showed that the measuring system is characterized with the features of high reliability and achieves the application requirements.
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王远, 江孝国, 陈思富, 李杰, 谢宇彤, 禹海军, 李劲. 电磁干扰下时间分辨测量系统信号外触发技术[J]. 强激光与粒子束, 2014, 26(4): 043201. Wang Yuan, Jiang Xiaoguo, Chen Sifu, Li Jie, Xie Yutong, Yu Haijun, Li Jin. External trigger technique of high speed signal of beam parameters measurement system under strong electromagnetic interruption[J]. High Power Laser and Particle Beams, 2014, 26(4): 043201.

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