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通过卡尺示值误差测量结果不确定度评定可知游标卡尺示值误差主要来源于:卡尺尺身标记误差、游标标记误差、卡尺标记宽度差误差、卡尺测量面的平面度误差、零位误差、视差等共6项,其扩展不确定度为0.02mm。而在实际检定过程中发现游标卡尺受力使尺框发生倾斜所引起的示值误差不
According to the evaluation results of the uncertainty of caliper indication error, the indication error of vernier caliper mainly comes from the following factors: caliper ruler mark error, vernier mark error, caliper mark width difference error, caliper measurement plane flatness error, zero error, parallax and so on A total of 6, the expansion of the uncertainty of 0.02mm. In the actual verification process found vernier caliper force to tilt the frame caused by the indication error is not