嫦娥七号月壤水分子分析仪地面定标试验方法
doi: 10.11728/cjss2026.02.2025-0151 cstr: 32142.14.cjss.2025-0151
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李想 女, 1995年9月出生于安徽省芜湖市, 现为中国科学院合肥物质科学研究院安徽光机所副研究员, 主要研究方向为痕量气体及同位素高灵敏检测技术. E-mail: xlee@aiofm.ac.cn -
曹乃亮 男, 1984年8月出生于山东省泰安市, 现为中国科学院合肥物质科学研究院安徽光机所副研究员, 主要研究方向为月球及深空光谱探测技术. E-mail: nlcao@aiofm.ac.cn
作者简介:
通讯作者:
Ground Calibration Test Method for Chang’E-7 Lunar Soil Water Molecule Analyzer
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摘要: 月球极区水冰探测对揭示月球演化、支撑未来月球科研站建设至关重要. 然而, 通过现有遥感手段与返回样品难以精确获取其赋存形态、含量及来源. 嫦娥七号( Chang’E-7 )飞跃器将搭载月壤水分子分析仪(LUWA), 首次对月球南极永久阴影区水冰开展就位探测. 本文介绍了LUWA的组成、原理及其与水冰钻取装置协同实现“钻探采样－接样密封－加热分析”的探测过程. 为确保载荷在轨实现高灵敏度、宽动态范围的水冰含量探测和高精度水同位素分析, 针对三个测水功能模块搭建了地面定标试验装置, 提出了定标方法; 围绕整机性能指标, 搭建了月壤水冰就位探测模拟试验平台, 模拟极区水冰的钻采、接样、密封、加热与分析全过程, 为在轨月壤水冰含量等数据反演提供重要支撑.
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关键词:
- 月壤水分子分析仪(LUWA) /
- 永久阴影区 /
- 极区水冰探测 /
- 地面定标方法
Abstract: The lunar pole’s water ice is essential for understanding the Moon’s evolution and building future lunar research station. Nevertheless, existing orbital remote-sensing missions and returned samples remain insufficient to resolve the key unknowns of polar water, including its occurrence modes (e.g., adsorbed water/hydroxyl, pore-filling ice, or ice-cemented regolith), its abundance and vertical variability, and its potential origin and evolutionary pathways. To address this gap, the Chang’E-7 mini-flying probe will carry the lunar soil Water molecule Analyser (LUWA) to conduct in-situ detection of water ice at the permanently shadowed region for the first time. This paper describes the compositional structure of LUWA and the detection approach, comprising drilling, sampling, sealing, heating and analysis. We detail the calibration parameters, apparatus, and procedures for its three core analytical modules: the Tunable Diode Laser Absorption Spectrometer (TDLAS), the Time-of-Flight Mass Spectrometer (TOF-MS), and the Differential optical Absorption Spectrometer (DAS). The operational chain is designed to release water through thermal extraction, quantify water content with high sensitivity across a wide dynamic range, and enable the determination of D/H isotopic signatures. A systematic ground calibration methodology and a unified calibration framework are established for three functional modules dedicated to water measurement. The framework defines calibration objectives, procedures, and traceability pathways to characterize module response functions, assess background and temperature-dependent effects, verify detection limits and linearity, and evaluate accuracy and repeatability, thereby supporting robust conversion from raw observables to calibrated water-content and isotope products in flight. In parallel, a dedicated lunar in-situ exploration test platform is developed to replicate LUWA’s full operational workflow using lunar regolith simulants, including drilling, sampling, sealing, heating, and analysis. Integrated tests validate key performance metrics and the measurement workflow, providing crucial technical support for interpreting Chang’E-7 LUWA data and for assessing the abundance and occurrence of water ice in lunar soil within PSRs. -
图 4 可调谐激光光谱仪定标装置原理
Figure 4. Schematic of the tunable laser spectrometer calibration device
图 6 差分吸收光谱仪定标装置原理
Figure 6. Schematic diagram of the differential absorption spectrometer calibration device
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[1] HAURI E H, SAAL A E, NAKAJIMA M, et al. Origin and evolution of water in the Moon's interior[J]. Annual Review of Earth and Planetary Sciences, 2017, 45: 89-111 doi: 10.1146/annurev-earth-063016-020239 [2] ZHANG P, DAI W, NIU R, et al. Overview of the lunar in situ resource utilization techniques for future lunar missions[J]. Space: Science & Technology, 2023, 3: 0037 [3] HU T, YANG Z, LI M, et al. Possible sites for a Chinese international lunar research station in the lunar south polar region[J]. Planetary and Space Science, 2023, 227: 105623 doi: 10.1016/j.pss.2022.105623 [4] CRIDER D H, VONDRAK R R. Hydrogen migration to the lunar poles by solar wind bombardment of the moon[J]. Advances in Space Research, 2002, 30(8): 1869-1874 doi: 10.1016/S0273-1177(02)00493-3 [5] GADDIS L R, JOY K H, BUSSEY B J, et al. Recent exploration of the Moon: science from lunar missions since 2006[J]. Reviews in Mineralogy and Geochemistry, 2023, 89(1): 1-51 doi: 10.2138/rmg.2023.89.01 [6] HONNIBALL C I, LUCEY P G, LI S, et al. Molecular water detected on the sunlit Moon by SOFIA[J]. Nature Astronomy, 2021, 5(2): 121-127 doi: 10.1038/s41550-020-01222-x [7] CHAKRABORTY T, SYED T H, HEGGY E, et al. On the reachability and genesis of water ice on the Moon[J]. ISPRS Journal of Photogrammetry and Remote Sensing, 2024, 211: 392-405 doi: 10.1016/j.isprsjprs.2024.03.020 [8] ZHU F L, ZHANG W W, WANG L X, et al. Modeling and analysis for volatile characteristics of lunar water ice[J]. Acta Astronautica, 2024, 220: 162-172 doi: 10.1016/j.actaastro.2024.04.028 [9] LI S, MILLIKEN R E. Water on the surface of the Moon as seen by the Moon Mineralogy Mapper: distribution, abundance, and origins[J]. Science Advances, 2017, 3(9): e1701471 doi: 10.1126/sciadv.1701471 [10] COLAPRETE A, SCHULTZ P, HELDMANN J, et al. Detection of water in the LCROSS ejecta plume[J]. Science, 2010, 330(6003): 463-468 doi: 10.1126/science.1186986 [11] LIN Y T, YANG W, ZHANG H, et al. Return to the Moon: new perspectives on lunar exploration[J]. Science Bulletin, 2024, 69(13): 2136-2148 doi: 10.1016/j.scib.2024.04.051 [12] HE H C, JI J L, ZHANG Y, et al. A solar wind-derived water reservoir on the Moon hosted by impact glass beads[J]. Nature Geoscience, 2023, 16(4): 294-300 doi: 10.1038/s41561-023-01159-6 [13] HE H C, LI L X, HU S, et al. Water abundance in the lunar farside mantle[J]. Nature, 2025, 643(8071): 366-370 doi: 10.1038/s41586-025-08870-x [14] JIA Y Z, ZHANG Z L, QIN L, et al. Research of lunar water-ice and exploration for China’s future lunar water-ice exploration[J]. Space: Science & Technology, 2023, 3: 0026 [15] (余后满, 饶炜, 张益源, 等. “嫦娥七号”探测器任务综述[J]. 深空探测学报(中英文), 2023, 10(6): 567-576 doi: 10.15982/j.issn.2096-9287.2023.20230119YU Houman, RAO Wei, ZHANG Yiyuan, et al. Mission analysis and spacecraft design of Chang’E-7[J]. Journal of Deep Space Exploration, 2023, 10(6): 567-576 doi: 10.15982/j.issn.2096-9287.2023.20230119 [16] WANG C, JIA Y Z, XUE C B, et al. Scientific objectives and payload configuration of the Chang’E-7 mission[J]. National Science Review, 2024, 11(2): nwad329 doi: 10.1093/nsr/nwad329 [17] (李想, 王兴平, 卢文振, 等. 月球极区水冰就位分析方案设计[J]. 深空探测学报(中英文), 2023, 10(6): 618-630 doi: 10.15982/j.issn.2096-9287.2023.20230106LI Xiang, WANG Xingping, LU Wenzhen, et al. Design for in-situ water ice analysis in the lunar polar region[J]. Journal of Deep Space Exploration, 2023, 10(6): 618-630 doi: 10.15982/j.issn.2096-9287.2023.20230106 [18] CHEN R, LU W Z, LI X, et al. Chang’E-7 Lunar Soil Water Molecule Analyzer (LSWMA) prototype for high-precision measurement of water content and hydrogen isotope ratio[J]. Journal of Earth Science, 2024, 35(6): 2180-2182 doi: 10.1007/s12583-024-2023-7 [19] LI X, CAO N L, KAN R F, et al. Miniaturized tunable laser spectrometer for the simultaneous detection of water ice and hydrogen–oxygen isotopes for the Chang’E-7 Lunar Soil Water Molecule Analyzer[J]. ACS Sensors, 2025, 10(6): 4679-4686 doi: 10.1021/acssensors.5c01115 [20] GENG J, WANG X D, TAO W Z, et al. Study on the provision of traceable flow rate of water vapor for calibrating a time-of-flight mass spectrometer[J]. Measurement, 2024, 234: 114869 doi: 10.1016/j.measurement.2024.114869 [21] SUN J, NIU H Z, TAN G B, et al. Miniaturized time-of-flight mass spectrometer for lunar water detection[J]. Vacuum, 2022, 204: 111312 doi: 10.1016/j.vacuum.2022.111312 [22] 马如奇, 裘桢炜, 潘博, 等. 月壤含水特性原位快速预判传感器设计与验证[J]. 宇航学报, 2022, 43(10): 1399-1409 doi: 10.3873/j.issn.1000-1328.2022.10.012MA Ruqi, QIU Zhenwei, PAN Bo, et al. Design and verification of rapid in-situ prediction sensors for lunar soil moisture characteristics[J]. Journal of Astronautics, 2022, 43(10): 1399-1409 doi: 10.3873/j.issn.1000-1328.2022.10.012 [23] 卢文振, 王兴平, 李想, 等. 月球极区水冰就位探测地面模拟平台的建立与试验分析[J]. 大气与环境光学学报, 2025, 20(4): 534-545 doi: 10.3969/j.issn.1673-6141.2025.04.010LU Wenzhen, WANG Xingping, LI Xiang, et al. Establishment and test of ground simulation experimental platform for in-situ detection of water-ice in lunar polar regions[J]. Journal of Atmospheric and Environmental Optics, 2025, 20(4): 534-545 doi: 10.3969/j.issn.1673-6141.2025.04.010 -
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