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.
作者
吴丽娜
第五朋朋
汪鑫
韩玉婷
Wu Lina;Diwu Pengpeng;Wang Xin;Han Yuting(Gansu Meteorological Information and Technical Equipment Support Center,Lanzhou 730020,China)
出处
《国外电子测量技术》
北大核心
2021年第5期42-46,共5页
Foreign Electronic Measurement Technology
关键词
自动站
现场校准
各要素传感器
不确定度分析
automatic weather station
field calibration
sensor of each element
uncertainty analysis
