Yi-hang XIE, Cai-hong DAI, Yan-fei WANG, Zhi-feng WU, Ling LI, Shu-fang HE. A New Method for Inflection Point Temperature Calculation of Large-Area High-Temperature Fixed-Point Blackbody Used in Spectral Irradiance Scale Realization[J]. Spectroscopy and Spectral Analysis, 2021, 41(12): 3942
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 12, 3942 (2021)
Fig. 1. The comparison between large and small-area WC-C HTFPs
Fig. 2. Improvement of spectral irradiance traceability chain
Fig. 3. A large-area WC-C HTFP cell
Fig. 4. A large-area blackbody radiation source
Fig. 5. Selection of fitting range
Fig. 6. Schematic diagram of gaussian fitting of frequency distribution
Fig. 7. The method of “CCT-WG5-WP2 protocol”
Fig. 8. Method of “half-width third-order polynomial fitting”
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Table 1. Calculating results of POIs temperature value in Kelvin for a small-area Re-C HTFP
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Table 2. The investigation of robustness for the new method
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Table 3. The influence of different factors on new and traditional methods
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