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百分表(千分表也同样)精度较高,操作方便,使用稳定,所以很受生产工人的欢迎,如能进一步灵活应用,会发挥更大的作用。例如要测量如图1那样的深孔h的尺寸怎么办?当然,采用内径千分尺(图1右)是方法之一,但是,当工件批量很大,且如图中工件形状底面为圆弧面时,内径千分尺的测头也不是容易找准的。正确地对准平面与圆弧面的中点,需要有相当熟练技术。活用百分表就很容易解决这类问题。
Dial indicator (dial indicator is also the same) high precision, easy operation, stable use, so very popular with the production workers, if further flexibility, will play a greater role. Of course, the use of micrometer diameter (Figure 1, right) is one of the methods, but when the workpiece is very large, and the shape of the workpiece as shown in the bottom surface of the arc When the diameter micrometer probe is not easy to find accurate. Correctly aligning the mid-point of the plane and the circular surface requires a good level of skill. Use dial indicator is very easy to solve such problems.