基于高精度光栅测长机的三点内径千分尺示值误差的测量方法  

Measuring Method of Three Point Inner Diameter Micrometer Indicating Error Based on High Precision Grating Measuring Machine

作　　者：何灵芝 王景凡 黄璐琦 毛斌 罗杰 王林青 HE Lingzhi;WANG Jingfan;HUANG Luqi;MAO Bin;LUO Jie;WANG Linqing

机构地区：[1]陕西省计量科学研究院

出　　处：《计量与测试技术》2025年第3期41-44,47,共5页Metrology & Measurement Technique

摘　　要：针对三点内径千分尺校准工作需配套大量标准环规、成本较高的问题,本文使用高精度光栅测长机配合专用检具和少量塞规,对其示值误差进行测量和不确定度评定,并与标准环规法的测量结果进行比对。结果表明,两种测量方法一致性较好,满足不确定度要求。In order to solve the problem that the calibration of three-point inner micrometer needs a large number of standard ring gauges and high cost,this paper uses high-precision grating length measuring machine with special gage and a few plug gauges to measure the indicating error and evaluate the uncertainty,and compares the measure-ment results with the standard ring gauge method.The results show that the two measurement methods have good consistency and meet the requirement of uncertainty.

关 键 词：三点内径千分尺 示值误差 光栅测长机 不确定度 

分 类 号：TG8[金属学及工艺—公差测量技术]