Research on the Ground Vacuum Shortwave Calibration of Moon-Based Earth Radiation Budget Detector
The Moon-based Earth Radiation budget Detector (MERD) is an instrument designed to measure the Earth-reflected Solar Radiation (ERSR) and the Earth thermal radiation from the Moon as part of future mission of China's Chang'e project. The accuracy of its calibration technology d...
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| Format: | Article |
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IEEE
2024-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/10568321/ |
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| author | Jieling Yu Wei Fang Duo Wu Silong Wang Zhitao Luo Yuwei Wang Yisu Zhang Xin Ye |
| author_facet | Jieling Yu Wei Fang Duo Wu Silong Wang Zhitao Luo Yuwei Wang Yisu Zhang Xin Ye |
| author_sort | Jieling Yu |
| collection | DOAJ |
| description | The Moon-based Earth Radiation budget Detector (MERD) is an instrument designed to measure the Earth-reflected Solar Radiation (ERSR) and the Earth thermal radiation from the Moon as part of future mission of China's Chang'e project. The accuracy of its calibration technology directly determines the measurement precision. For traceability to International System of Units (SI) and improve the calibration accuracy in the ERSR wave band, a vacuum shortwave radiance calibration system is built, which consists of an in-situ traceable Electrical Substitution Transfer Radiometer (ESTR) and a Shortwave Calibration Light Source (SWCLS). Where, SWCLS is designed with a electrically variable slit and a 12-hole narrow-band filter wheel to achieve continuous broad-spectrum radiance output and discrete narrow-spectrum band tuning, respectively. Additionally, wide dynamic range output is from the introduction of elliptic land spherical mirrors for bilateral highly efficient focusing structure. This paper presents the mathematical process of shortwave calibration and focuses on the design and analysis of SWCLS based on high stability, radiance and uniformity. Results show that light source stability is 0.05922%/h, radiance uniformity is 99.49% at the calibration distance of 300 mm, the range of output radiant brightness in the spectral range 0.3–2.5 μm is 0.03–1272.20 W/m<sup>2</sup>/sr. |
| format | Article |
| id | doaj-art-681d46b12cb94006b9627ff4cd0575c1 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-681d46b12cb94006b9627ff4cd0575c12025-01-24T00:00:50ZengIEEEIEEE Photonics Journal1943-06552024-01-011651810.1109/JPHOT.2024.341732110568321Research on the Ground Vacuum Shortwave Calibration of Moon-Based Earth Radiation Budget DetectorJieling Yu0https://orcid.org/0009-0001-8498-4371Wei Fang1Duo Wu2https://orcid.org/0000-0001-6682-3710Silong Wang3Zhitao Luo4Yuwei Wang5Yisu Zhang6Xin Ye7https://orcid.org/0000-0001-6735-5939Space Optical Department I, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, ChinaSpace Optical Department I, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, ChinaSpace Optical Department I, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, ChinaLunar Exploration and Space Engineering Center, Beijing, ChinaSpace Optical Department I, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, ChinaSpace Optical Department I, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, ChinaSpace Optical Department I, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, ChinaSpace Optical Department I, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, ChinaThe Moon-based Earth Radiation budget Detector (MERD) is an instrument designed to measure the Earth-reflected Solar Radiation (ERSR) and the Earth thermal radiation from the Moon as part of future mission of China's Chang'e project. The accuracy of its calibration technology directly determines the measurement precision. For traceability to International System of Units (SI) and improve the calibration accuracy in the ERSR wave band, a vacuum shortwave radiance calibration system is built, which consists of an in-situ traceable Electrical Substitution Transfer Radiometer (ESTR) and a Shortwave Calibration Light Source (SWCLS). Where, SWCLS is designed with a electrically variable slit and a 12-hole narrow-band filter wheel to achieve continuous broad-spectrum radiance output and discrete narrow-spectrum band tuning, respectively. Additionally, wide dynamic range output is from the introduction of elliptic land spherical mirrors for bilateral highly efficient focusing structure. This paper presents the mathematical process of shortwave calibration and focuses on the design and analysis of SWCLS based on high stability, radiance and uniformity. Results show that light source stability is 0.05922%/h, radiance uniformity is 99.49% at the calibration distance of 300 mm, the range of output radiant brightness in the spectral range 0.3–2.5 μm is 0.03–1272.20 W/m<sup>2</sup>/sr.https://ieeexplore.ieee.org/document/10568321/Earth radiation budgetshortwave calibrationvacuum calibration systemradiance sourceuniformity |
| spellingShingle | Jieling Yu Wei Fang Duo Wu Silong Wang Zhitao Luo Yuwei Wang Yisu Zhang Xin Ye Research on the Ground Vacuum Shortwave Calibration of Moon-Based Earth Radiation Budget Detector IEEE Photonics Journal Earth radiation budget shortwave calibration vacuum calibration system radiance source uniformity |
| title | Research on the Ground Vacuum Shortwave Calibration of Moon-Based Earth Radiation Budget Detector |
| title_full | Research on the Ground Vacuum Shortwave Calibration of Moon-Based Earth Radiation Budget Detector |
| title_fullStr | Research on the Ground Vacuum Shortwave Calibration of Moon-Based Earth Radiation Budget Detector |
| title_full_unstemmed | Research on the Ground Vacuum Shortwave Calibration of Moon-Based Earth Radiation Budget Detector |
| title_short | Research on the Ground Vacuum Shortwave Calibration of Moon-Based Earth Radiation Budget Detector |
| title_sort | research on the ground vacuum shortwave calibration of moon based earth radiation budget detector |
| topic | Earth radiation budget shortwave calibration vacuum calibration system radiance source uniformity |
| url | https://ieeexplore.ieee.org/document/10568321/ |
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