强激光与粒子束, 2010, 22 (9): 2143, 网络出版: 2010-09-21
数字锁相检测在合肥光源逐圈测量系统的应用
Application of digital lock-in detection to Heifei Light Source turn-by-turn system
数字锁相检测 阻尼率 逐圈测量 束流反馈 合肥光源 digital lock-in detection damping rate turn-by-turn measurement beam feedback Heifei light source
摘要
从其原理出发,分析了数字锁相检测在逐圈束流位置测量系统中用于束流振荡阻尼率(增长率)计算的可行性,并在Matlab中对其进行了仿真计算。将该方法应用到合肥光源逐圈测量系统中,进行了Beta振荡的增长和阻尼时间的计算,结果显示振荡增长时间约为0.26 ms,阻尼时间为1.2 ms(反馈系统调试时)。仿真和实验结果都表明,数字锁相检测可以有效用于逐圈测量系统中阻尼率的计算。
Abstract
This paper introduces the digital lock-in detection theory and discusses its feasibility to obtain the damping rate in turn-by-turn measurement systems. Numerical simulations of this method were carried out with Matlab. Then principle presenting beam experiments were conducted on the Heifei Light Source(HLS) storage ring. The measured beta oscillation growth time is about 0.26 ms and the damping time is about 1.2 ms. Simulation and experimental results show that, the digital lock-in detection method is effective in damping rate measurement in turn-by-turn measurement systems.
杨永良, 王筠华, 孙葆根, 陈园博, 周泽然. 数字锁相检测在合肥光源逐圈测量系统的应用[J]. 强激光与粒子束, 2010, 22(9): 2143. Yang Yongliang, Wang Junhua, Sun Baogen, Chen Yuanbo, Zhou Zeran. Application of digital lock-in detection to Heifei Light Source turn-by-turn system[J]. High Power Laser and Particle Beams, 2010, 22(9): 2143.