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Domestic Absolute Gravimeter Cave Comparison Observation
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Jiapei WANG1, 2, 3, Minzhang HU1, 2, 3, *, Minkang ZHOU4, Yuan CHENG4, Xiaobing DENG4, Minghui ZHANG1, 2, 3, Chi XIAO1, 2, 3, Zhongya LI1, 2, 3, Jin WEI1, 2, 3, Chao ZHOU5, Wei TIAN6, Wu LIU7, Yaning WANG8
Journal of Geodesy and Geodynamics | 2026, 46(3) : 308 - 315
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Journal of Geodesy and Geodynamics | 2026, 46(3): 308-315
Domestic Absolute Gravimeter Cave Comparison Observation
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Jiapei WANG1, 2, 3, Minzhang HU1, 2, 3, *, Minkang ZHOU4, Yuan CHENG4, Xiaobing DENG4, Minghui ZHANG1, 2, 3, Chi XIAO1, 2, 3, Zhongya LI1, 2, 3, Jin WEI1, 2, 3, Chao ZHOU5, Wei TIAN6, Wu LIU7, Yaning WANG8
Affiliations
  • 1 Key Laboratory of Earthquake Geodesy, Institute of Seismology, CEA, Wuhan 430071, China
  • 2 Key Laboratory of Earthquake Geodesy, CEA, Wuhan 430071, China
  • 3 Gravitation and Earth Tide, National Observation and Research Station, Wuhan 430071, China
  • 4 Center for Gravitational Experiments, School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
  • 5 Innovation Academy for Precision Measurement Science and Technology, CAS, Wuhan 430077, China
  • 6 717 Research Institute of China State Shipbuilding Corporation Limited, Wuhan 430200, China
  • 7 CAS Cold Atom Technology (Wuhan) Corporation Limited, Wuhan 430070, China
  • 8 Changsha Quantum Measurement Industry Technology Research Institute Corporation Limited, Changsha 410006, China
Published: 2026-03-15 doi: 10.14075/j.jgg.2025.05.173
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To further evaluate the technical performance of domestic independently developed absolute gravimeters, this study conducted comparison observations using multiple absolute gravimeters in the cave of the Huazhong University of Science and Technology National Gravimetry Laboratory. Through unified data processing, high-precision absolute gravity comparison data were obtained. The results demonstrate that no significant deviation exists between atomic interferometry absolute gravimeters and laser interferometry absolute gravimeters in this comparison, with deviations all within -4.95 μGal to 5.31 μGal. Each atomic interferometry absolute gravimeter achieved an observation precision of 1 μGal during continuous 4-hour measurements, with inter-instrument deviations maintained below 10 μGal, demonstrating excellent stability and consistency. This study marks the first comparison measurements conducted on multiple domestically developed absolute gravimeters featuring independent domestic. It involved detailed data processing, scientific evaluation, and a multidimensional performance assessment, providing crucial references for the subsequent development and application of domestic gravimeters.

comparative observation  /  absolute gravimeter  /  laser interferometric  /  atomic interferometric  /  deviation
王嘉沛, 胡敏章, 周敏康, 程源, 邓小兵, 张明辉, 肖驰, 李忠亚, 韦进, 周超, 田蔚, 刘武, 王亚宁. 国产绝对重力仪山洞比对观测. 大地测量与地球动力学, 2026 , 46 (3) : 308 -315 . DOI: 10.14075/j.jgg.2025.05.173
Jiapei WANG, Minzhang HU, Minkang ZHOU, Yuan CHENG, Xiaobing DENG, Minghui ZHANG, Chi XIAO, Zhongya LI, Jin WEI, Chao ZHOU, Wei TIAN, Wu LIU, Yaning WANG. Domestic Absolute Gravimeter Cave Comparison Observation[J]. Journal of Geodesy and Geodynamics, 2026 , 46 (3) : 308 -315 . DOI: 10.14075/j.jgg.2025.05.173
Appendix
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Year 2026 volume 46 Issue 3
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Article Info
doi: 10.14075/j.jgg.2025.05.173
  • Receive Date：2025-05-22
  • Online Date：2026-10-29
  • Published：2026-03-15
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History
  • Received：2025-05-22
Funding
Affiliations
    1 Key Laboratory of Earthquake Geodesy, Institute of Seismology, CEA, Wuhan 430071, China
    2 Key Laboratory of Earthquake Geodesy, CEA, Wuhan 430071, China
    3 Gravitation and Earth Tide, National Observation and Research Station, Wuhan 430071, China
    4 Center for Gravitational Experiments, School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
    5 Innovation Academy for Precision Measurement Science and Technology, CAS, Wuhan 430077, China
    6 717 Research Institute of China State Shipbuilding Corporation Limited, Wuhan 430200, China
    7 CAS Cold Atom Technology (Wuhan) Corporation Limited, Wuhan 430070, China
    8 Changsha Quantum Measurement Industry Technology Research Institute Corporation Limited, Changsha 410006, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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