目 录
一 概述 ···········································。···········································…… (1)
二 检定项目和检定条件 ·....................................................................... (2)
三 技术要求和检定方法 ·....................................................................... ( 3 )
四 检定结果处理和检定周期 ·................................................................. ( 5 )
附录1 用分度值为1`自准直仪检定平行度检查仪示值误差 ·····················…… (6)
附录2 D, d值及光屏活动标尺换算表 ······················································……(8)
JJG 828- 1993
激光千分尺平行度检查仪检定规程
本规程适用于新制造、使用中和修理后的激光千分尺平行度检查仪的检定。
一 概 述
激光千分尺平行度检查仪 (简称平行度检查仪)是利用激光光束通过一套光学系统
形成点光源所发出的球面波，分别经标准棱镜两平行平面与被测千分尺两测量面反射
后，先后在光屏上形成干涉环，由这两组干涉圆环的中心距确定被测千分尺两测量面的
平行度。
