一种评价三维控制网精度的方法

A Method for Evaluating the Precision of 3D Control Network

根据大型粒子加速器储存环与光束线控制网的布局,提出了一种基于基准点直线度及坐标偏差的控制网精度评价方法,可以准确地判断控制网偏差的方向和大小。通过搭建具体的试验模型,模拟光束线控制网转站测量引起的偏差,通过引入闭环测量,有效地降低了转站测量引起的控制网偏差;在上海光源某光束线控制网的转站测量过程中,通过引入基准点坐标偏差的方法,准确地判断了光束线控制网的偏差。

According to the layout of synchrotron facility and beamline, a new method is proposed to evaluate the control network precision, which is based on the reference points＇ the straightness and deviation. An experiment model is constructed to simulate the transfer station measurement process of beamline control network. Close-loop measuring can reduce the deviation effectively. While transferring a beamline control network at SSRF, deviation of control network was accurately judged by reference points＇ deviation.