Uncertainty Analysis of Wavelength Calibration of Monochromator Based on Neon Atomic Spectral Lamps

CHE Delu; ZHANG Jiawen; ZHANG Tingting; WANG Gao; LU Xiaofeng; WANG Bingying; ZHAO Yandong

doi:10.12338/j.issn.2096-9015.2023.0239

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CHE Delu, ZHANG Jiawen, ZHANG Tingting, WANG Gao, LU Xiaofeng, WANG Bingying, ZHAO Yandong. Uncertainty Analysis of Wavelength Calibration of Monochromator Based on Neon Atomic Spectral Lamps[J]. Metrology Science and Technology. doi: 10.12338/j.issn.2096-9015.2023.0239

Citation:

CHE Delu, ZHANG Jiawen, ZHANG Tingting, WANG Gao, LU Xiaofeng, WANG Bingying, ZHAO Yandong. Uncertainty Analysis of Wavelength Calibration of Monochromator Based on Neon Atomic Spectral Lamps[J]. Metrology Science and Technology. doi: 10.12338/j.issn.2096-9015.2023.0239

Citation:

CHE Delu, ZHANG Jiawen, ZHANG Tingting, WANG Gao, LU Xiaofeng, WANG Bingying, ZHAO Yandong. Uncertainty Analysis of Wavelength Calibration of Monochromator Based on Neon Atomic Spectral Lamps[J]. Metrology Science and Technology. doi: 10.12338/j.issn.2096-9015.2023.0239

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Uncertainty Analysis of Wavelength Calibration of Monochromator Based on Neon Atomic Spectral Lamps

doi: 10.12338/j.issn.2096-9015.2023.0239

CHE Delu^{1, 2
,},
ZHANG Jiawen^{2, 3},
ZHANG Tingting²,
WANG Gao¹,
LU Xiaofeng^{2
,
,},
WANG Bingying⁴,
ZHAO Yandong⁴

1.
North University of China, Taiyuan 030051, China
2.
National Institute of Metrology, Beijing 100029, China
3.
HeBei University, Baoding 071002, China
4.
Inner Mongolia Power Machinery Institute, Huhhot 010010, China

Received Date: 2023-10-23
Accepted Date: 2023-12-12
Rev Recd Date: 2023-12-22

Available Online: 2024-04-12

Abstract

Abstract

As a kind of spectroscopic instrument, the monochromator is used to separate the mixed light into monochromatic light in the spectral responsivity of the photoelectric pyrometer. To improve the uncertainty level of temperature scale extension and reproduction for photoelectric pyrometers, it is necessary to calibrate the wavelength accuracy of the monochromator in the spectral responsivity for three commonly used photoelectric pyrometers with 660nm, 800nm and 900nm filters. In this paper, a neon atomic line lamp is used as a standard light source and a spectrum analyzer was used to scan the spectral line distribution in the range of 600nm～1200nm. The selected 37 characteristic spectral lines were then used to calibrate the wavelength error of the monochromator. The wavelength errors of the monochromator were analyzed in terms of slit width, wavelength correction method, detector response, nonlinearity, and calibration repeatability. The results showed that the uncertainty of the wavelength error was no more than 0.033 nm at 900nm wavelength. For the pyrometer with 660nm filter, the uncertainties of the temperature measurements at 1084.62°C and 3000°C were 0.01°C and 0.28°C, respectively.
- metrology,
- spectrum analyzer,
- monochromator,
- spectral line lamp,
- wavelength calibration,
- uncertainty

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References(31)

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