【作者】 李秀明；

【Author】 LI Xiuming (College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100022)

【机构】 北京工业大学机械工程与应用电子技术学院；

【摘要】 高(低)值点构成的锐角三角形包含圆心长期以来被用作确定最小外接圆和最大内接圆的判别准则,本文对这一判别准则进一步研究,发现该判别准则并不准确,从而对高(低)值点构成的三角形包含圆心的判别准则作了补充,增加了钝角三角形判别准则,得到了最小外接圆和最大内接圆的圆度误差值。通过实例说明该补充能够更加全面的解决圆度误差的评定问题。更多还原

【Abstract】 The principle of evaluating the minimum circumscribed circle and maximum inscribed circle determined by an acute angle triangle has been used for a long time in industrial environment.However,this principle is not full accurate through the further research on it.In order to make the principle more comprehensive, the obtuse angle triangle is proposed and regarded as the supplement of the original principle.Then the error value of the minimum circumscribed circle and maximum inscribed circle is obtained correctly.The validated result shows that the proposed principle offers an effective way to identify the critical data points and gives an efficient approach to solve the circularity problems.更多还原