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介绍了利用合肥同步辐射光源(HLS)的逐束团位置测量系统在北京正负电子对撞机(BEPC)上进行的逐圈位置测量实验．在不同条件下对束流进行逐圈位置测量,得到束流的相运动图像并观测了阻尼效应．利用基频数值分析(NAFF)方法对逐圈位置数据分析得到高精度的柬流频谱,可以由此研究各种效应引起的工作点漂移．实验中观测到特定工作点下由色品校正六极子引起的束流共振现象,并对此作了合理解释．
This paper introduces the measurement of every turn position by BBS based on HLS synchrotron radiation (BEPC). Under different conditions, beam-by-turn position measurement was carried out to obtain the beam’s phase motion image and observe the damping effect. By using the NAFF method, we can obtain the high-precision angular velocity of the Cambodian flow by analyzing the position-by-turn position data, which can be used to study the drift of working point caused by various effects. In the experiment, the phenomenon of beam resonance caused by chromaticity corrected six-pole at a specific working point was observed and a reasonable explanation was given.