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Static Drift Characteristics of CG6 Relative Gravimeter
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Zhongya LI1, 2, 3, Minzhang HU1, 2, 3, *
Journal of Geodesy and Geodynamics | 2026, 46(2) : 184 - 188
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Journal of Geodesy and Geodynamics | 2026, 46(2): 184-188
Static Drift Characteristics of CG6 Relative Gravimeter
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Zhongya LI1, 2, 3, Minzhang HU1, 2, 3, *
Affiliations
  • 1 Institute of Seismology, CEA, Wuhan 430071, China
  • 2 Wuhan Gravitation and Solid Earth Tides, National Observation and Research Station, Wuhan 430071, China
  • 3 Hubei Earthquake Agency, Wuhan 430071, China
Published: 2026-02-15 doi: 10.14075/j.jgg.2025.02.048
Outline
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A thorough understanding of the static drift characteristics of CG6 relative gravimeter is crucial for obtaining high-quality relative gravity observation data. We utilize 65-hours observation data from CG6-90 relative gravimeter and iGrav-56 superconducting gravimeter installed on adjacent site at the Sanya seismic station. Three calculation schemes are designed to determine the static drift rate of CG6-90 relative gravimeter. The results show that CG6-90 relative gravimeter exhibits a static linear drift rate of -8.861±0.035 μGal/h, and there is a nonlinear drift phenomenon with gravity variation ranging from -1 to 1 μGal. When calculating the static drift rate of CG6 relative gravimeter, it is essential to apply corrections for gravity changes induced by solid Earth tides, ocean tides, and atmospheric pressure variations.

CG-6 relative gravimeter  /  static drift  /  iGrav superconducting gravimeter  /  gravity correction  /  ocean tide
李忠亚, 胡敏章. CG6相对重力仪静态漂移特性分析. 大地测量与地球动力学, 2026 , 46 (2) : 184 -188 . DOI: 10.14075/j.jgg.2025.02.048
Zhongya LI, Minzhang HU. Static Drift Characteristics of CG6 Relative Gravimeter[J]. Journal of Geodesy and Geodynamics, 2026 , 46 (2) : 184 -188 . DOI: 10.14075/j.jgg.2025.02.048
Year 2026 volume 46 Issue 2
34
14
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Article Info
doi: 10.14075/j.jgg.2025.02.048
  • Receive Date:2025-02-24
  • Online Date:2026-10-29
  • Published:2026-02-15
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  • Received:2025-02-24
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Affiliations
    1 Institute of Seismology, CEA, Wuhan 430071, China
    2 Wuhan Gravitation and Solid Earth Tides, National Observation and Research Station, Wuhan 430071, China
    3 Hubei Earthquake Agency, Wuhan 430071, 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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