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1郾分米双刻线像与0.1mm刻线像相对位置移动,分米双刻线像偏高或偏低(1)如所有分米双刻线像都偏高或偏低,则是由测量头座中平行光管的直角棱镜位置与尾座中平行光管的直角棱镜位置已绕光轴移动造成。此时如分米双刻线像偏离不大,应打开尾座平行光管外罩,松开锁紧螺钉,微调直角
1 郾 decimetre double engraved line and 0.1mm engraved relative to the position of the engraving, decanter double engraved line image as high or low (1) If all the decimetres double engraved lines are high or low, then by The position of the right-angle prism of the parallel light pipe in the headstock and the right-angle prism of the parallel light pipe in the tailstock have been caused to move around the optical axis. At this point, such as double-decker double line image deviation is not big, should open the tailstock collimator cover, loosen the locking screw, fine-tune the right angle