单基准给定方向轴线对平面倾斜度误差的评定

Evaluation the Gradient Error of the Measured Axis Related to a Single Datums in Given Direction

根据被别要素与基准要素的几何关系，提出了一种单基准、给定方向的评定轴线对平面倾斜度的算法．该算法通过坐标的旋转变换确定评定平面，从而可以快速、准确地确定符合定义的倾斜度误差值．

According to the geometric relationship between the measured axis and thedatums a algorithm to evaluate the gradient error of measured axis with respect tothe single datums in given direction is presented in this paper. By rotation of threedimensions coordinate, the evaluation plane for the gradient error is identified; andthe gradient error which accords with its definition can be obtained fast andaccurately.