对于V形尺的V形面与底面的平行度误差,我们可以利用其公母配对的特点,采用互检法进行测量。即将配对的公母V形尺(如图1)配合放置在检验平板上(为测量方便,一般将母V形尺放在下面,公V形尺放在上面),用测微表在公V形尺底平面(在上方)的两端各测得一个读数。然后将公V形尺调转180 For V-shaped V-shaped surface and the bottom of the parallelism error, we can use the characteristics of its male and female pairs, using mutual test method for measurement. Will be paired male and female V-shaped ruler (Figure 1) with the test plate placed (for the convenience of measurement, the general will be placed under the mother V-shaped ruler, male V-shaped ruler on top), with a micrometer in the public V A reading is taken at each end of the square base plane (above). Then turn the male V-shaped ruler 180