温度代表性误差对基线测距的影响  

The Influence of Temperature Representative Error on Baseline Ranging

作　　者：邓向瑞 梁宝敏[1] 肖华杰 李建双 李连福[2] DENG Xiangrui;LIANG Baomin;XIAO Huajie;LI Jianshuang;LI Lianfu(Lingnan Normal University,Zhanjiang 524048,China;National Institute of Metrology,Beijing 100029,China;Zhongyi(Shanghai)Information Communication Technology Co.Ltd.,Shanghai 210206,China)

机构地区：[1]岭南师范学院,湛江524048 [2]中国计量科学研究院,北京100029 [3]中移(上海)信息通信科技有限公司,上海210206

出　　处：《计量科学与技术》2020年第12期7-11,共5页Metrology Science and Technology

基　　金：国家质检总局质量技术监督技术改造项目(2015NIM02);质检公益性行业科研专项项目(201310009)。

摘　　要：气象代表性误差是影响光电测距仪测距精度的重要因素。而温度代表性误差又是气象代表性误差中最主要的部分,当温度的误差为1℃时,将会对距离观测值带来约1mm/km(9.6×10^-7)的误差。通过对测线上的温度观测,发现测线上不同区域、不同高度上温度差异较大,对测线上的温度梯度分布做了实测分析及论证。The meteorological representative error is an essential factor affecting the accuracy of the Electronic Distance Measuring(EDM).Among them,the representative error of temperature is the most important part of the meteorological representative error.A temperature error of 1℃will introduce an error of about 1 mm/km(9.6×10^-7)to the distance observation.In this paper,through the observation of the temperature on the measuring line,it is found that the temperature varies greatly in different areas and at different heights on the measuring line,and the temperature gradient distribution on the measuring line is measured,analyzed,and demonstrated.

关 键 词：基线测距 精密测距 大气折射率 温度代表性误差 积分法 

分 类 号：TB921[一般工业技术—计量学]