圆度检测基本上可以概括为定轴测量和不定轴测量两种基本类型。以固定轴线旋转进行圆度检测的方法,以圆度仪为代表,无论是测头或被测物旋转,都必须有一个可靠的、具备一定精度要求的转动轴系,以保持稳定的转动轴线。二点法,三点法等圆度检测方法是不定轴的测量法,尤其是三点法 Roundness test basically can be summarized as fixed axis measurement and indefinite measurement of two basic types. Rotation of the fixed axis roundness detection method, represented by the roundness instrument, either the probe or the measured object rotation, must have a reliable, with a certain accuracy requirements of the rotating shaft to maintain a stable axis of rotation . Two-point method, three-point method, such as roundness detection method is not measured axis method, especially the three-point method