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Procedure for determining the position of a reference point of a scanner relative to an incremental scale and reference points

机译:确定扫描仪参考点相对于增量刻度和参考点的位置的过程

摘要

The position of a reference point of a scanner relative to an incremental scale with marks arranged thereon with constant spacings is roughly determined based on the marks passed along the scale multiplied by the spacing of the marks, and finely determined by interpolation between the marks. The interpolation between the marks is made by determining the projection angles between the reference point and three marks adjacently arranged on the scale, and by calculating the coordinates of the reference point according to trigonometric functions.
机译:扫描仪的参考点相对于增量刻度的位置相对于其上以恒定间隔布置的标记的位置,是根据沿刻度传递的标记乘以标记的间距大致确定的,并通过标记之间的插值来精确确定。通过确定参考点和在刻度尺上相邻排列的三个标记之间的投影角,并根据三角函数计算参考点的坐标,可以进行标记之间的内插。

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