在进行外圆柱轴心线间不同轴度测量时 ,通常是将圆柱的基准表面置于Ｖ型架上 ,当工件旋转一周时就可以得到一基准的轴心线。然后在另一圆柱表面上与指示表接触。如果工件二轴心线重合 ,则转动工件一周时 ,指示表的指示为零 ;反之 ,其指示值不为零。此时仪表的读数为实际的不同 When measuring the misalignment of the outer cylinder axes, it is common to place the cylinder’s reference surface on a V-frame and to obtain a reference axis when the workpiece is rotated one revolution. Then contact the indicator on the other cylindrical surface. If the workpiece coincides with the two-axis line, then turn the workpiece a week, indicating that the instructions for the table is zero; the other hand, the indication is not zero. At this point the actual reading of the instrument is different