Magnetic measurement system of wiggler for free electron laser
-
摘要: 根据理论分析及实际加工水平,设计了一套摇摆器磁场测量系统,同时对影响磁测系统整体性能的主要参数进行了详尽分析。摇摆器磁测装置主要由气浮运动平台、测磁设备及控制系统组成,其主要功能是对霍尔探头的位置与磁场数据进行高精度测量及同步采集。主要参数如下: z向定位精度小于5 m,重复定位精度小于2 m;霍尔探头的测量精度为0.05%,重复测量精度为0.01%,响应频率为1 kHz;数据采集卡的采样率不小于1000。Abstract: The wiggler magnetic measurement system is designed according to theoretical analysis and manufacture technology level. The main parameters which affect the character of the magnetic measurement are described and analyzed in detail. Accurate orientation and measure of Hall probe with synchronous acquisition of the position and magnetic field data are the main function of the magnetic field measurement device which is made up of air-thrust bearings, Magnetic instrument and control system. In z direction, the positioning accuracy and repeat positioning accuracy are less than 5 m and 2 m respectively. Measuring precision, repeat measuring precision and response frequency of Hall probe are 0.05%, 0.01% and 1 kHz respectively. Sampling rate of data acquisition card is more than 1000.
-
Key words:
- wiggler /
- magnetic measurement system /
- air-thrust bearings /
- Hall probe /
- control system
点击查看大图
计量
- 文章访问数: 939
- HTML全文浏览量: 190
- PDF下载量: 334
- 被引次数: 0