A New Method for Inflection Point Temperature Calculation of Large-Area High-Temperature Fixed-Point Blackbody Used in Spectral Irradiance Scale Realization

Yi-hang XIE; Cai-hong DAI; Yan-fei WANG; Zhi-feng WU; Ling LI; Shu-fang HE

doi:10.3964/j.issn.1000-0593(2021)12-3942-07

Spectroscopy and Spectral Analysis, Volume. 41, Issue 12, 3942(2021)

A New Method for Inflection Point Temperature Calculation of Large-Area High-Temperature Fixed-Point Blackbody Used in Spectral Irradiance Scale Realization

Yi-hang XIE^*, Cai-hong DAI^*;, Yan-fei WANG, Zhi-feng WU, Ling LI, and Shu-fang HE

Author Affiliations

Division of Optical Metrology, National Institute of Metrology, China, Beijing 100029, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(11)

Fig. 1. The comparison between large and small-area WC-C HTFPs

Download full size

View in Article

Fig. 2. Improvement of spectral irradiance traceability chain

Download full size

View in Article

Fig. 3. A large-area WC-C HTFP cell

Download full size

View in Article

Fig. 4. A large-area blackbody radiation source

Download full size

View in Article

Fig. 5. Selection of fitting range

Download full size

View in Article

Fig. 6. Schematic diagram of gaussian fitting of frequency distribution

Download full size

View in Article

Fig. 7. The method of “CCT-WG5-WP2 protocol”

Download full size

View in Article

Fig. 8. Method of “half-width third-order polynomial fitting”

Download full size

View in Article

Table 1. Calculating results of POIs temperature value in Kelvin for a small-area Re-C HTFP

View table

View in Article

Table 1. Calculating results of POIs temperature value in Kelvin for a small-area Re-C HTFP

小口径固定点	T_POI/K					新方法与传统算法平均值的最大偏差/K
小口径固定点	可筛选多次拟合法	“CCT-WG5-WP2 协议” 计算法	半波段三次拟合法	频率分布的高斯拟合法	传统算法结果的平均值	新方法与传统算法平均值的最大偏差/K
Re-C	2 747.623	2 747.645	2 747.643	2 747.603	2 747.630	-0.007
WC-C	3 020.545	3 020.550	3 020.546	3 020.543	3 020.546	-0.001

Table 2. The investigation of robustness for the new method

View table

View in Article

Table 2. The investigation of robustness for the new method

影响因素		不同条件下对应的T_POI/K				偏差/K
筛选标准		$R_{adj}^{2}$ ≥0.995 3 019.971		$R_{adj}^{2}$ ≥0.95 3 019.974		0.003
平滑处理		平滑处理 3 019.971		原始数据组 3 019.971		0
拟合范围	外限拟合范围	680 s	720 s		760 s	不同组与720 s组的偏差
		680 s	720 s		760 s	680 s	760 s
		3 019.971	3 019.971		3 019.973	680 s	760 s
		3 019.971	3 019.971		3 019.973	0	0.002
	内限拟合范围	440 s	480 s		520 s	不同组与480 s组的偏差
		440 s	480 s		520 s	440 s	520 s
		3 019.968	3 019.971		3 019.975	440 s	520 s
		3 019.968	3 019.971		3 019.975	-0.003	0.004

Table 3. The influence of different factors on new and traditional methods

View table

View in Article

Table 3. The influence of different factors on new and traditional methods

方法名称	平滑处理			外限拟合范围(熔化持续范围)
	不同条件下对应的T_POI/K		偏差 /K	不同间隔组的T_POI/K			不同组与720 s组的偏差/K
	平滑处理	原始数据组	偏差 /K	680 s	720 s	760 s	680 s	760 s
可筛选多次拟合法	3 019.974	3 019.974	0.000	3 019.973	3 019.974	3 019.975	-0.001	0.001
“CCT-WG5-WP2协议”计算法	3 019.977	3 019.996	0.019	/	3 019.977	/	/	/
半波宽三次拟合法	3 019.449	3 019.453	0.004	3 018.955	3 019.453	3 020.086	-0.498	0.633
频率分布的高斯拟合法	3 020.090	3 020.009	-0.081	3 020.001	3 020.009	3 020.020	-0.008	0.011

Tools

Get Citation

Copy Citation Text

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

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites

Paper Information

Category: Research Articles

Received: Nov. 3, 2020

Accepted: --

Published Online: Dec. 17, 2021

The Author Email: Yi-hang XIE (xieyihang918@163.com)

DOI:10.3964/j.issn.1000-0593(2021)12-3942-07

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology