内径千分尺是长度量值溯源过程中的一个重要计量检定设备。在量值溯源过程中,内径千分尺各测量值有一定的不确定度范围。如何剖析检定过程中各项误差因素的影响,各项误差因素的影响程度如何。本文针对这些问题进行了阐述,对于测量误差的修正及测量结果的最终评定有一定指导意义。 Micrometer ID is an important metrological verification device in the traceability of length measurement. In the traceability of the value of the diameter micrometer measurements have a certain range of uncertainties. How to analyze the verification process of the impact of the error factors, the impact of various error factors. In this paper, we elaborate on these problems, which is of guiding significance to the correction of measurement errors and the final assessment of measurement results.