摘要:
强流电子束束参数瞬态测量系统在直线感应加速器的复杂电磁环境中会受到强电磁的干扰,主要包括:干扰特性、干扰机理、数学描述、抑制措施、防范措施等,这些干扰既针对电路又针对系统,从而对束参数瞬态测量系统测量的稳定性以及测量数据的有效性都有很大的影响.介绍时间分辨测量系统的原理,分析了瞬态脉冲干扰的成因和抑制方法,给出了束参数测量系统的实验布局和特点,进一步探讨电子器件电性能受瞬态脉冲干扰后的抑制措施,其目的是为了达到减少或消除干扰,破坏干扰信号的传输条件,从而提高整个系统的抗干扰能力及可靠性.通过采用光纤传输控制信号可以很好地传输窄脉冲,减少信号延时抖动,以达到高速信号的可靠稳定传输;利用紧凑嵌入式方法,提高了抗电磁干扰的能力,可以更好保护测量系统电子器件,提高整个系统的抗干扰能力.
Abstract:
There are strong electromagnetic interferences on instantaneous electron beam parameters measurement system in LIA.The transient pulses,which may affect both circuits and measurement system,are harmful to electronic devices and captu-ring effective data.The principle of instantaneous electron beam parameters measurement system is introduced in this paper, while the formation mechanism and the suppression method of transient pulse interferences are analyzed.Arrangement of the sys-tem is also proposed.The effects on electron devices performance by transient pulse interference and the preventive method are discussed,too.By using optical fiber,which effectively reduced the delay jitter of narrow pulses,the reliability requirement of high-speed control signal propagation was fulfilled.To provide better protection for the electronic devices of beam parameter measurements,the anti-electromagnetic interference ability of the system was enhanced by compactly-embedded method.The re-liability of the overall measurement system was significantly improved as a result.
首页
登录
注册
下载: