Assessment of Equivalence of the Spectral Radiance Scales Following the Results of the Comparison between the National Metrology Institutes of Korea, China, and Russia

Assessment of Equivalence of the Spectral Radiance Scales Following the Results of the Comparison between the National Metrology Institutes of Korea, China, and Russia

The paper presents the assessment of equivalence of the spectral radiance scales in the wavelength range from 250 to 2500 nm, reproduced at the national metrology institutes of Korea (KRISS), China (NIM), and Russia (VNIIOFI), carried out in the framework of international comparisons. The common set...

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Bibliographic Details
Published in:Measurement techniques Vol. 63; no. 12; pp. 1004 - 1011
Main Authors: Shin, Dong-Joo, Khlevnoy, Boris B., Dai, Caihong, Park, Seongchong, Lee, Dong-Hoon, Solodilov, Maxim V., Kolesnikova, Svetlana S., Wu, Zhifeng, Wang, Yanfei
Format: Journal Article
Language:English
Published: New York Springer US 01-03-2021
Springer
Springer Nature B.V
Subjects:
Analysis
Analytical Chemistry
Characterization and Evaluation of Materials
Data analysis
Equivalence
Information management
International Collaboration
Laboratories
Lamps
Mathematical analysis
Measurement
Measurement Science and Instrumentation
Metrology
Physical Chemistry
Physics
Physics and Astronomy
Radiance
Radiation
Spectra
Tungsten
Uncertainty
China
Russia
tungsten strip lamp
spectral radiance
high-temperature blackbody
degree of equivalence
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Summary:The paper presents the assessment of equivalence of the spectral radiance scales in the wavelength range from 250 to 2500 nm, reproduced at the national metrology institutes of Korea (KRISS), China (NIM), and Russia (VNIIOFI), carried out in the framework of international comparisons. The common set of three tungsten strip lamps was used as an artefact. Based on a series of blind measurements of the lamps spectral radiance performed at each laboratory alternately, the reference value of the comparison was determined at each wavelength as a weighted mean of the measured data of three laboratories. The degree of equivalence of each laboratory was then calculated as the deviation of the measurement data of that participant from the reference value. A data analysis method was proposed for calculating the degree of equivalences and their uncertainties. The method is based on processing spectral radiance ratios, rather than differences, which allows eliminating the influence of a result of one particular participant to results of other laboratories. The comparison results confirm the equivalence of spectral radiance scales of all the laboratories within their expanded uncertainties ( k = 2) except a few wavelength points.
ISSN:0543-1972
1573-8906
DOI:10.1007/s11018-021-01884-7