Radial rotation error of the spindle is an important factor affecting the precision of machining and instrumental measurement.
主轴径向回转误差是影响机床加工精度和圆度等仪器测量精度的重要因素。
2
A shaft in the box and a box cover wheel without axial or radial clearance is another factor to move, should refer to a box of round renovation measures.
条轴在条盒轮与条盒盖间无轴向或径向间隙是转动不灵的又一因素，应参照条盒轮的整修办法进行。
3
Based the math model of lens distortion, the plane roundness gridding model is used to calculate the lens distortion coefficients of radial distortion and other non-linear factor.