一、关于游标卡尺外量爪错位量的检定铁道部武汉工程机械厂陈宏实来信询问游标卡尺外量爪不是刀口形时,是否可在背面按规程规定方法检定外量爪的错位量?对于这个问题,我的理解是,由于卡尺在结构上没有遵循“被测长度应放在作为标准尺的刻度延长线上”的阿贝原理,所以尺框和尺身的配合间隙引起的外量爪错位量,将造成尺框对尺身倾斜,产生较大的卡尺示值误差。为 First, on the Vernier caliper external claw misalignment of the Ministry of Railways Wuhan Construction Machinery Factory Chen Hong real letter asked Vernier caliper external claw is not a knife-shaped, whether the provisions of the rules on the back of the method of testing the amount of displacement of external claws? For this problem, I The understanding is that the caliper in the structure did not follow the “measured length should be placed on the scale as a standard extension of the scale line,” the Abbe principle, Resulting in ruler on the ruler tilt, resulting in a larger caliper indication error. for