JKZ3-1型探空仪基测箱校准方法研究及不确定度评定  

Research on the calibration method and evaluation of uncertainty in the instrument for radiosonde on JKZ3-1

作　　者：汪鑫[1] 第五朋朋 宋媛[1] 吴丽娜[1] WANG Xin;DIWU Pengpeng;SONG Yuan;WU Lina(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：《自动化与仪器仪表》2024年第5期256-259,共4页Automation & Instrumentation

基　　金：甘肃省科技计划资助(23JRRA1322)。

摘　　要：经过换型后,气象系统L波段高空气象探测使用的探空仪基测箱主要为南京大桥机器有限公司生产的JKZ3-1型电子探空仪基测箱。目前由于没有检定规程,为使新型探空仪基测箱的校准工作规范化,确保所得数据的可信程度,对基测箱的校准方法进行研究并对其不确定度进行分析评定。首先,温度、气压选取校准点分别进行重复性测量。然后以非统计分析方法评定各分量,选取合理的概率分布类型,最后确定置信因子并计算扩展不确定度。结果表明,除了测量重复性之外,温度测量量值的分散性主要受一等标准铂电阻温度计、精密测温电桥、制冷恒温槽的不均匀性、基测箱温度分辨率影响,气压测量量值的分散性主要受标准数字气压计、全自动压力校验仪以及基测箱气压分辨率影响。After changing the model,the measuring instrument for radiosonde on Jkz3-1 produced by Nanjing Bridge Machinery Co.,LTD,is mainly used for L band high-altitude meteorological exploration work in meteorological data.At present,there is no verification regulation for calibration.In order to standardize the calibration work and ensure the the reliability of measurement data,we need to research on the calibration method and analyze the measured results.Firstly,The instrument is measured repeatedly at calibration points.Then,each component is analyzed by non-statistical method and the specific value of uncertain component is calculated by using a reasonable probability distribution.Finally,the expanded uncertainty is obtained with determining inclusion factor.The results show that in addition to the uncertainty introduced by repetition,the Grade I standard platinum resistance thermometer,the temperature measuring bridge,the non-uniformity of temperature trough,the resolution of an instrument will mainly affect the uncertainty of measurement results in temperature.The standard digital barometer,the automatic pressure calibrator CPC6000,the resolution of an instrument will mainly affect the uncertainty of measurement results in atmospheric pressure.

关 键 词：探空仪基测箱 校准 示值误差 不确定度 

分 类 号：TH89[机械工程—仪器科学与技术]