圆度评定中最小二乘方圆的研究

A Study on the Least Square Circle for Roundness Evaluation

评定圆度的最小二乘方圆的圆心位置及半径的计算公式,已由国际统一文件作了推荐.本文在分析研究该公式的特性及存在问题的基础上,重新建立和严密推导出了两套新公式,借微机演算表明它们精确可靠.

Based on a detailed study of the formulas recommended by the C.I.R.P.Standard,which is used to calculate the parameters of the least square circle for the roundness evaluation,two sets of new formulas are set up and verified by the computation on microcomputer.