铂电阻地温传感器检定不确定度评定

Uncertainty Evaluation of Verification Results of Platinum Resistance Ground Temperature Sensors

为确保铂电阻地温传感器观测数据的准确、可靠并具有可比性,定期开展对地温传感器的检定是非常重要的。通过检定将地温传感器系统误差控制在允许范围内,并对检定结果进行不确定度评定,是考察检定结果可信程度的重要步骤。本文依据《JJG(气象)002-2015自动气象站温度传感器》和《JJF1059.1-2012测量不确定度评定与表示》的要求,设计10次重复性试验,分析检定过程中的不确定度来源,并对不同的不确定度来源进行A类和B类不确定度评定,此评定方法对自动气象站地温检定结果可信度评估具有指导意义。

In order to ensure the accuracy,reliability,and comparability of the platinum resistance ground temperature sensors,it is very important to calibrate the temperature sensors of automatic meteorological stations.Through tests,the errors are controlled within the scope of the system permit.Uncertainty analysis is one of the important steps to examine the credibility of calibration results.On the basis of the related operating guidelines about ground temperature sensors of automatic meteorological stations and the evaluation and expression of uncertainty in measurement,ten repeatability tests are conducted,and the sources of the uncertainty in the process of verification are analyzed,targeted to different sources of the uncertainty evaluation of categories A and B.The evaluation method is of certain significance to the credibility evaluation of ground temperature sensor calibration results of automatic meteorological stations