分析了离轴三镜系统中光学元件调整变量间的补偿关系和面形误差与调整变量间的补偿关系。
The compensation relationships among the adjustable variables and those between surface errors and the adjustable variables in off-axis three-mirror system are analyzed.
基于三轴数控机床的空间误差模型，使用三维步距规识别数控机床空间几何误差。
Based on error model, the three dimension-stop gauge was used to identify the space errors of CNC machine tools.
通过对三轴磁航向测量原理及误差形成原因的分析，提出了一套快速有效的补偿办法。
Through analysing the reason about three axis magnetic heading measured principle and error, a fast and effective method about compensation is brought forward.
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