直线度双节距法测量中的粗差识别方法研究

Identifying Method Research of Gross Error in Bi-pitch Measurement of Straightness

在直线度双节距法测量过程中 ,由于粗大误差的存在造成了在处理与计算中错误的粗差定位 ,为了减少或消除粗大误差对处理数据的影响 ,采用了期望平移模型对这些数据进行粗差识别 ,对含有粗大误差的数据项进行修正 ,并且在此基础上进行最小二乘法估计。

In the course of straightness error measuring, it causes inaccurate orientation in process and computation because of much experimental data with gross error. In order to reduce or get rid of the influence of gross error in dealing with data, the data of gross error will be corrected by probing gross error with model of expectation translation in theory of LS.