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1 前言在评定机械零件的圆度误差时,根据国家标准《形状和位置公差检测规定》中的规定,采用“与理想要素比较原则”,实际被测圆轮廓虚与理想圆比较,而理想圆的位置应符合最小条件,即被测圆对理想圆的变动量应为最小。实际上是在数据处理中求最小包容区。最小包容区所形成的两个同心圆之间
1 Introduction In the assessment of roundness error of mechanical parts, according to the national standard “Shape and Position Tolerance Provisions” in the provisions of the “principle of comparison with the ideal element”, the actual measured round profile virtual and ideal circle compared to the ideal circle The location should be consistent with the minimum conditions, that is, the measured circle on the ideal circle changes should be minimal. In fact, in the data processing and find the smallest inclusive area. The smallest inclusion area formed between two concentric circles