提出了一种新的时域乱序四点法直线误差分离技术 ,它通过对 4个特定布置传感器的输出数据进行冗余组合和乱序递推 ,能快速精确地分离出工件的直线形状误差和工作台的直行误差运动 .

• By means of the redundant combination and unconventional sequential recursion on the outputs from four probes arranged in special intervals, straightness error of the workpiece and linear error motion of the worktable can be obtained quickly and accurately.