目录
] 范围··，，········，·，，·········，········，······，·····················，······，·，··········，·，··⋯⋯ (1)
2 引用文献······················································································一(1)
3 概述···，·······，·，······································，，···························，····⋯ ⋯ (1)
4 计量性能要求·，················，·········，··················，·······················，·⋯⋯ (1)
4.1 带筋工作台工作面的平面度··················............................................(1)
4.2 平工作台工作面的平面度，···，···················，··················，·········，····⋯⋯ (2)
4.3 两定位指示计轴线间的距离········································，·············⋯⋯ (2)
4.4 两定位指示计轴线的平行度， ，· ，·，·，·········，·。··，，，，1·。·，，·········，·。一(2)
4.5 球面测帽的球面顶点与其套孔轴线的重合性················，··················⋯⋯ (2)
4.6 所选定位指示计技术指标要求······························，················，···⋯ ⋯ (2)
5 通用技术要求···········，·····································，·········，················⋯⋯ (2)
5.1 外观···································，··，···············】·····························⋯⋯ (2)
5二2 各部分的相互作用·，··········，·，·······，······························，，··，·····，····⋯⋯ (2)
6 计量器具控制··········，·············，······················，··············，·········⋯⋯ (2)
6.1 检定条件································，···‘····，···························，，····‘·⋯ (2)
6.2 检定项目···，·················，····························，····························⋯⋯ (3)
6.3 检定方法···，4··········，······························································一(3)
6.4 检定结果的处理········，···············，····················，········，·········，，····⋯⋯ (5)
6.5 检定周期··························，··················································，·⋯ 〔5)
JJG 300- 2002
小角度检查仪检定规程
范围
本规程适用于小角度检查仪的首次检定、后续检定和使用中检验。
2 弓!用文献
本规程引用下列文献:
JJ Fl OO 1-1998 通用计量术语及定义
JJF1059-1999 测量不确定度评定与表示
使用本规程时应注意使用上述引用文献的现行有效版本。
概述
小 角 度 检查仪是一种用于产生标准微小角度的测量仪器，其产生的标准角度范围
0'-40'，主要用于检定自准直仪、合像水平仪、电子水平仪等计量器具，工作原理见
图l。
它的原理公式为:0 = arcsin ( H /L )。
二H /L
由于0角很小，原理公式也可写为
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