1 范围 ···················································。········································，··… (1)
2 引用文献 ·······················································································…… 八)
3 概述 ·····························································································…… (I)
4 计量性能要求 ··················································································一 (I)
5 通用技术要求 ·················································································…… 、I)
6 计量器具控制 ·················································································，·… (2)
6.1 检定条件 ·················.···································································…… (2)
6.2 检定项目 ···················································································…… (2)
6.3 检定方法 。···················································································…… (2)
6.4 检定结果的处理 ···········································································…… (5)
6.5 检定周期 ··················································································，·…… (6)
附录A 计算实例·················································································…… (7)
附录B 检定证书和检定不合格通知书内页格式··········································…… (9)
水准仪检定装置
， 范围
本规程适用于各种水准仪检定装置的首次检定、后续检定和使用中检验。
2 引用文献
JJG 425-1994《水准仪检定规程》
JB/T 7399-1994《平行光管》
JJF1059~一1999《测量不确定度评定与表示》
JJF1001-1998《通用计量术语及定义》
使用本规程时，应注意使用上述文献的现行有效版本。
3 概述
水准仪检定装置主要性能有两个:一是具有一条成像在无穷远目标的水平方向的视
准线;二是在一条视准线上从5m到无穷远范围内应分布不少于5个十字丝目标。装置的
工作原理可分为两种:直接检定与比较检定。直接检定分为自动安平式和电子水泡式。
自动安平式采用自动安平式平行光管，检定装置的工作原理示意见图1。电子水泡式采用
三点互调法将作为标准的自准直仪视准轴调水平，利用安装在自准直仪上的电子水泡进
行监测和读数。
