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Report on the CCT Supplementary Comparison S1 of Infrared Spectral Normal Emittance/Emissivity.
Metrologia ( IF 2.1 ) Pub Date : 2017-02-28 , DOI: 10.1088/0026-1394/53/1a/03001
Leonard Hanssen 1 , B Wilthan 2 , Christian Monte 3 , Jörg Hollandt 3 , Jacques Hameury 4 , Jean-Remy Filtz 4 , Ferruccio Girard 5 , Mauro Battuello 5 , Juntaro Ishii 6
Affiliation  

The National Measurement Institutes (NMIs) of the United States, Germany, France, Italy and Japan, have joined in an inter-laboratory comparison of their infrared spectral emittance scales. This action is part of a series of supplementary inter-laboratory comparisons (including thermal conductivity and thermal diffusivity) sponsored by the Consultative Committee on Thermometry (CCT) Task Group on Thermophysical Quantities (TG-ThQ). The objective of this collaborative work is to strengthen the major operative National Measurement Institutes' infrared spectral emittance scales and consequently the consistency of radiative properties measurements carried out worldwide. The comparison has been performed over a spectral range of 2 μm to 14 μm, and a temperature range from 23 °C to 800 °C. Artefacts included in the comparison are potential standards: oxidized inconel, boron nitride, and silicon carbide. The measurement instrumentation and techniques used for emittance scales are unique for each NMI, including the temperature ranges covered as well as the artefact sizes required. For example, all three common types of spectral instruments are represented: dispersive grating monochromator, Fourier transform and filter-based spectrometers. More than 2000 data points (combinations of material, wavelength and temperature) were compared. Ninety-eight percent (98%) of the data points were in agreement, with differences to weighted mean values less than the expanded uncertainties calculated from the individual NMI uncertainties and uncertainties related to the comparison process.

中文翻译:

关于CCT红外光谱正常发射率/发射率的补充比较S1的报告。

美国,德国,法国,意大利和日本的国家测量研究所(NMI)参加了实验室间红外光谱发射标度的比较。此操作是由温度计量咨询委员会(CCT)热物理量任务组(TG-ThQ)赞助的一系列实验室间补充比较(包括热导率和热扩散率)的一部分。这项合作工作的目的是加强主要的国家测量机构的红外光谱发射标度,从而加强在全球范围内进行的辐射特性测量的一致性。比较是在2μm至14μm的光谱范围以及23°C至800°C的温度范围内进行的。比较中包含的伪像是潜在的标准:氧化铬镍铁合金,氮化硼和碳化硅。对于每个NMI,用于发射标度的测量仪器和技术都是独特的,包括所覆盖的温度范围以及所需的伪像尺寸。例如,代表了所有三种常见的光谱仪器类型:色散光栅单色仪,傅立叶变换和基于滤波器的光谱仪。比较了2000多个数据点(材料,波长和温度的组合)。百分之九十八(98%)的数据点是一致的,加权平均值的差异小于根据各个NMI不确定性和与比较过程相关的不确定性计算出的扩展不确定性。对于每个NMI,用于发射标度的测量仪器和技术都是独特的,包括所覆盖的温度范围以及所需的伪像尺寸。例如,代表了所有三种常见的光谱仪器类型:色散光栅单色仪,傅立叶变换和基于滤波器的光谱仪。比较了2000多个数据点(材料,波长和温度的组合)。百分之九十八(98%)的数据点是一致的,加权平均值的差异小于根据各个NMI不确定性和与比较过程相关的不确定性计算出的扩展不确定性。对于每个NMI,用于发射标度的测量仪器和技术都是独特的,包括所覆盖的温度范围以及所需的伪像尺寸。例如,代表了所有三种常见的光谱仪器类型:色散光栅单色仪,傅立叶变换和基于滤波器的光谱仪。比较了2000多个数据点(材料,波长和温度的组合)。百分之九十八(98%)的数据点是一致的,加权平均值的差异小于根据各个NMI不确定性和与比较过程相关的不确定性计算出的扩展不确定性。代表了所有三种常见的光谱仪器类型:色散光栅单色仪,傅立叶变换和基于滤波器的光谱仪。比较了2000多个数据点(材料,波长和温度的组合)。百分之九十八(98%)的数据点是一致的,加权平均值的差异小于根据各个NMI不确定性和与比较过程相关的不确定性计算出的扩展不确定性。代表了所有三种常见的光谱仪器类型:色散光栅单色仪,傅立叶变换和基于滤波器的光谱仪。比较了2000多个数据点(材料,波长和温度的组合)。百分之九十八(98%)的数据点是一致的,加权平均值的差异小于根据各个NMI不确定性和与比较过程相关的不确定性计算出的扩展不确定性。
更新日期:2019-11-01
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