经纬仪一测回水平方向标准偏差的不确定度评定  

Uncertainty Evaluation for Experimental Standard Deviation of a Horizontal Direction of Theodolite

作　　者：黄立刚 贾晓蓉 董旭明 吴学文 HUANG Ligang;JIA Xiaorong;DONG Xuming;WU Xuewen

机构地区：[1]陕西测绘仪器计量监督检定中心,陕西西安710054 [2]西北测绘职工培训中心,陕西西安710054

出　　处：《计量与测试技术》2021年第5期116-119,共4页Metrology & Measurement Technique

摘　　要：根据计量检定规程要求,"一测回水平方向标准偏差"是经纬的必检项目,同时也是判断经纬仪合格与否的重要指标,根据JJF 1059.1-2012《测量不确定度评定与表示》,使用GUM法,分析影响测得值的所有不确定度来源,评定出DJ1、DJ2、DJ6三个等级的光学经纬仪一测回水平方向标准偏差测得值的不确定度。According to the requirements of metrological verification regulation,"experimental standard deviation of a horizontal direction"is not only a necessary item of longitude and latitude,but also an important index to judge whether the theodolite is qualified or not,according to JJF 1059.1-2012"Evaluation and Expression of Uncertainty in Measurement",using GUM method,all uncertainty sources affecting measurement results are analyzed,and the uncertainty of measurement results of experimental standard deviation of a horizontal direction for optical theodolite of DJ1,DJ2 and DJ6 grades is evaluated.

关 键 词：一测回水平方向标准偏差 不确定度的评定 扩展不确定度 

分 类 号：P213[天文地球—测绘科学与技术]