Abstract: The installation precision order of magnetic sensors is analyzed by numerical evaluation. The R 
and Z coordinate error of the flux loops is within ±2.0mm, and the R, Z error of the magnetic probes is within 
±1.0mm and θ error ±0.1°. The locator devices adopt the high-precision laser tracker and the arm-measuring 
machine, which have a positioning accuracy of 0.3mm. According to the installation characteristics of different 
kinds of magnetic sensors, the location structures of sensors including the flux loops, magnetic probe arrays, 
diamagnetic loops, are optimized and designed. The installation accuracy of magnetic measurement sensors on the 
HL-2M tokamak is controlled within 0.5mm. 

Key words: HL-2M tokamak, Magnetic measurement, Location, Fixture structure 

摘要： 通过数值计算评估了 HL-2M 装置磁测量传感器安装精度的要求，其中磁通环坐标(R, Z)的安装偏差
要求达到±2.0mm 以内，磁探针的(R, Z)偏差要求在±1.0mm 以内、角度偏差在±0.1°以内。定位安装采用高精度激
光跟踪仪和关节测量臂结合，设备定位精度在±0.3mm。根据不同种类的磁测量传感器的定位安装特点，优化设
计了包括磁通环、磁探针阵列、逆磁同心圆等的定位结构，将 HL-2M 磁测量传感器的安装精度控制到在±0.5mm
水平。 

关键词: HL-2M 装置；磁测量；定位安装；工装结构