因瓦水准标尺示值误差的不确定度评定
Evaluate the uncertainty of indication error of Invar Level Rod
黄立刚 1贾晓蓉 2王建文 3岳峰 1曹钰1
作者信息
- 1. 陕西测绘仪器计量监督检定中心,陕西 西安 710054
- 2. 自然资源部第一航测遥感院,陕西 西安 710054
- 3. 自然资源部大地测量数据处理中心,陕西 西安 710054
- 折叠
摘要
因瓦水准标尺是水准测量仪器的组成部分,也是传递国家长度标准的载体.对水准标尺进行计量检定是保证量值传递的可靠手段.针对二等标准金属线纹尺检定因瓦水准标尺,需要不确定度的评定来评价检测结果的质量.根据《水准标尺检定规程》JJG 8-1991要求,按照不确定度评定理论,使用GUM法,根据不确定度传播定律及不确定度评定步骤,给出了因瓦水准标尺的示值误差的不确定度.结果表明采用二等标准金属线纹尺检定因瓦水准标尺满足规范要求.
Abstract
Invar Level Rod is a part of leveling instrument and also a carrier of transmitting national length standard.The metrological verification of the level rod is a reliable means to ensure the value transfer.The uncertainty evaluation is needed to evaluate the quality of the test results in the verification of the Invar Level Rod for the Standard Metallic Scale(GradeⅡ).According to the requirements from JJG 8-1991 Verification Regulation of Level Rod,uncertainty evaluation theory,uncertainty propagation law and uncertainty evaluation steps,the uncertainty of indication error of Invar Level Rod is given by using GUM method.The results show that the Standard Metallic Scale(GradeⅡ)can meet the requirements of the code.
关键词
水准标尺/示值误差/测量不确定度Key words
level rod/indication error/uncertainty of measurement引用本文复制引用
出版年
2024
NETL
NSTL
万方数据