自动站各要素传感器现场校准结果的不确定度分析  

Uncertainty analysis of field calibration results of sensors in automatic weather station

作　　者：吴丽娜[1] 第五朋朋 汪鑫[1] 韩玉婷[1] Wu Lina;Diwu Pengpeng;Wang Xin;Han Yuting(Gansu Meteorological Information and Technical Equipment Support Center,Lanzhou 730020,China)

机构地区：[1]甘肃省气象信息与技术装备保障中心,兰州730020

出　　处：《国外电子测量技术》2021年第5期42-46,共5页Foreign Electronic Measurement Technology

摘　　要：国家级台站备份自动站各要素传感器随着时间推移,均会发生一定程度的漂移。为确保各要素传感器测量数据的准确、可靠,按照要求需定期开展现场校准工作,不确定度评定是校准工作的重要部分。因此,结合自动站现场校准工作,依据JJF1059.1-2012《测量不确定度评定与表示》的要求,首先介绍了测量结果不确定度评定的一般方法和详细步骤,然后分析各要素误差来源,通过实例分别对温度、湿度、气压、雨量、风速和风向传感器现场校准测量结果的不确定度进行了分析和评定,并给出具体的扩展不确定度评定值。As time goes on,the sensors of each element in the automatic backup station of national stations will drift to a certain extent.In order to ensure the accuracy and reliability of sensor measurement data,field calibration should be carried out regularly according to the requirements.Uncertainty evaluation is an important part of calibration work.Therefore,in this paper,combined with the field calibration of automatic weather station,according to JJF 1059.1-2012"evaluation and expression of measurement uncertainty".Firstly,the general method and detailed steps of uncertainty evaluation results are introduced,Then the error sources of each element are analyzed,and the uncertainty of field calibration measurement results of temperature,humidity,air pressure,rainfall,wind speed and wind direction sensors are analyzed and evaluated.Finally.The specific evaluation value of expanded uncertainty is given.

关 键 词：自动站 现场校准 各要素传感器 不确定度分析 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]