本文提出了一种圆度误差的新算法。该算法不需试探便能直接确定搜索方向,在该方向上能用公式求得最优点,从而在不存在原理误差的条件下,能快速、精确地求得最小条件圆度误差值。 This paper presents a new roundness error algorithm. The algorithm can directly determine the search direction without any heuristic, and the formula can be used to find the optimal point in this direction. Therefore, the minimum circularity error can be obtained quickly and accurately under the condition of no principle error.