Abstract

A Fournier-Transform infrared (FTIR) spectrometer using a deuterated triglycine sulfate (DTGS) detector is the radiation detective unit of the infrared spectral emissivity measurement facility of standard reference of P. R. China at NIM. The linearity of the FTIR spectral responsivity in the NIM infrared spectral emissivity measurement facility has a significant contribution to emissivity measurement. The linearity of the FTIR using the DTGS detector is experimentally measured using a flux superposition principle. A linearity measurement system of FTIR spectral responsivity is established using a high- and mid-temperature standard reference cavity blackbody radiation sources, covered the temperature range (373-1373) K. The linearity characteristics are measured in the temperature range of (473∼1273) K of the blackbody radiation sources. The measurement results with the uncertainties at the representative wavelengths of 3.9 μm and 10.6 μm are reported. The associated discussions about the linearity measurement results, including the difference at the two wavelengths, the effects caused by reflection and verifications are carried out. All the measurements in this paper are traceable to NIM.

Details

Title
Linearity measurement of FTIR infrared spectral emissivity measurement facility determined using flux superposition at NIM
Author
Song, X 1 ; Dong, W 1 ; Yuan, Z 1 ; X Lu 1 ; Z Li 2 ; Y Qu 2 ; B An 1 ; Huan, K 2 

 Heat Division, National Institute of Metrology (NIM), No. 18, Beisanhuandonglu, Beijing 100029, P. R. China 
 School of Science, Changchun University of Science and Technology (CUST), No. 7089, Weixinglu, Changchun 130022, P. R. China 
Publication year
2021
Publication date
Jan 2021
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2512311548
Copyright
© 2021. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.