两种圆度误差评定方法之精确算法及其编程

The Accurate Algorithm and Program Designof the Implementation of the Two Roundness Errors

“最小外接圆法”、“最大内接圆法”均为法定的圆度误差评定方法,本文旨在寻求相应的算法,获取“最小外接圆法”、“最大内接圆法”意义下圆度误差的精确值,并加以理论证明。

Minimum inscribed circle and maximum inscribed circle are the implementation of the roundness error.The approximate algorithm is adopted recently.The paper gives the accurate values of the roundness error of minimum inscribed circle(the same as the maximum inscribed circle).As the limit of precision,it is suggested that the minimum inscribed circle and maximum inscribed circle should not be adopted to evaluate the roundness error.