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兰州重离子研究装置的磁场测量系统已于1983年10月建立.多探头长臂上装有94个霍尔片.测磁支架采用由长臂、动环和定环组成的以加速器几何中心为原点的极坐标系结构.由小型计算机承担自动控制和数据的获取与处理工作.对16KG磁场,本系统的测量重复性好于±5×10~(-5),测量精确度估计为±1×10~(-4).测量速度约为每分钟188个数据.
Magnetic field measurement system of Lanzhou heavy ion research device was established in October 1983. The multi-probe long arm is equipped with 94 Hall pieces.Measurement magnetic bracket by the long arm, moving ring and fixed ring with the accelerator geometric center as the origin Of the polar coordinate system.A small computer to undertake automatic control and data acquisition and processing.For 16KG magnetic field, the measurement repeatability of this system is better than ± 5 × 10 -5, the measurement accuracy is estimated as ± 1 × 10 ~ (-4). The measurement speed is about 188 data per minute.