现行业务湿度传感器测量不确定度研究  

Measurement Uncertainty Analysis and Evaluation on Current Business Humidity Sensor

作　　者：蒋娟萍[1,2] 卢会国[1,2] 吴丽娜[1] 

机构地区：[1]成都信息工程学院电子工程学院,四川成都610225 [2]成都信息工程学院中国气象局大气探测重点开放实验室,四川成都610225

出　　处：《成都信息工程学院学报》2015年第1期37-41,共5页Journal of Chengdu University of Information Technology

基　　金：国家重大科学仪器设备开发专项资助项目(2012YQ110205)

摘　　要：依据JJF1059.1-2012《测量不确定度评定与表示》,针对自动气象站各要素传感器的测量误差会随时间、温度等环境因素的变化而发生漂移。为确保观测数据的准确、可靠,以CP340恒温恒湿箱为湿度发生环境、采用英国michell公司的Optidew Vision精密露点仪为标准器,介绍了利用HMP155A温湿度传感器进行湿度测量不确定度评定的一般方法和详细步骤。最后给出一个评定实例,在温度为22℃和40℃,相对湿度为30%RH^75%RH时,通过对测量不确定度的各分量进行分析和计算,得到HMP155A温湿度传感器测量结果的扩展不确定度分别为1.50%和1.46%。According to JJF1059.1-2012 ＂evaluation and expression of uncertainty in measurement＂, With the varia- tion of time and temperature, errors of each element sensor in automatic weather station will be in drift. In order to ensure the accuracy and reliability of observational data of each element, in this paper, with the CP340 constant tem- perature and humidity box for humidity environment, taking the ＂Optidew Vision＂ precise dew-point instrument by Michell company in the UK as the standard instrument, the general methods and detailed procedures of use HMP155A temperature and humidity sensor for humidity measurement uncertainty evaluation are introduced. Final- ly, we give an evaluation example： at a temperature of 22℃ and 40℃, relative humidity of 30 % RH - 75 % RH, by an- alyzing and calculating the each component of measurement uncertainty, It is obtainded that the expanded uncertainty of humidity is 1.50 % and 1.46 %.

关 键 词：气象探测 湿度检定 相对湿度 测量不确定度 检定结果 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]