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基于不同规范的重力仪双程往返零漂率计算分析

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文章导航 > 物探与化探 > 2023 > 47(5): 1307-1315

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常小鹏, 陈亮, 张翔, 张凌霄, 朱樟柳, 乔衍溢. 2023. 基于不同规范的重力仪双程往返零漂率计算分析. 物探与化探, 47(5): 1307-1315. doi: 10.11720/wtyht.2023.1526
引用本文: 常小鹏, 陈亮, 张翔, 张凌霄, 朱樟柳, 乔衍溢. 2023. 基于不同规范的重力仪双程往返零漂率计算分析. 物探与化探, 47(5): 1307-1315. doi: 10.11720/wtyht.2023.1526
shu
CHANG Xiao-Peng, CHEN Liang, ZHANG Xiang, ZHANG Ling-Xiao, ZHU Zhang-Liu, QIAO Yan-Yi. 2023. Calculation and analysis of zero drift rates of gravimeters in two-way reciprocal observations based on different specifications. Geophysical and Geochemical Exploration, 47(5): 1307-1315. doi: 10.11720/wtyht.2023.1526
Citation: CHANG Xiao-Peng, CHEN Liang, ZHANG Xiang, ZHANG Ling-Xiao, ZHU Zhang-Liu, QIAO Yan-Yi. 2023. Calculation and analysis of zero drift rates of gravimeters in two-way reciprocal observations based on different specifications. Geophysical and Geochemical Exploration, 47(5): 1307-1315. doi: 10.11720/wtyht.2023.1526
shu

基于不同规范的重力仪双程往返零漂率计算分析

  • 1.中国地质调查局 地球物理调查中心,河北 廊坊 065000;

  • 2.中国地质大学(北京) 地球物理与信息技术学院,北京 100083;

  • 3.中国地质调查局 军民融合地质调查中心,四川 成都 610000;

  • 4.中国地质调查局 廊坊自然资源综合调查中心,河北 廊坊 065000

  • 基金项目:

    中国地质调查局项目“雅鲁藏布江大游SDZ开发规划建设区综合地球物理调查”(DD20211546)

详细信息
    作者简介: 常小鹏(1991-),男,工程师,主要从事重磁数据处理和非线性反演方法研究等领域的科研工作。Email:2585479415@qq.com

  • 中图分类号: P631

Calculation and analysis of zero drift rates of gravimeters in two-way reciprocal observations based on different specifications

  • 1. Geophysical Survey Center, China Geological Survey, Langfang 06500, China;

  • 2. School of Geophysics and Information Technology, China University of Geosciences (Beijing), Beijing 100083, China;

  • 3. Civil-Military Integrated Geological Survey Center, China Geological Survey, Chengdu 610000, China;

  • 4. Langfang Center for General Survey of Natural Resources, China Geological Survey, Langfang 065000, China

    摘要
  • 重力测量是大地测绘及地球物理勘探的重要部分,根据不同的重力规范开展双程往返观测( i 、 j 、 j ' 、 i '),其对零漂率的计算也不同,地质调查规范将 j点的重复测量做静掉格处理,石油规范运用回归分析的方法计算零漂率。 j点的重复测量间隔的处理不同,导致两类规范得出的零漂率数值差异明显。本文通过对理论算式分析和实测数据对比,分析了 j点重复测量的 g ' j - g j、 t ' j - t j对零漂率计算的影响,对比石油规范中采用的回归分析法,说明了“静掉格”处理对减小因仪器性能、测量环境影响导致的不确定因素的重要意义,提出了两类规范的适用条件。
    Gravity survey is an important part of geodetic mapping and geophysical exploration. Different gravity specifications adopt different methods to calculate the zero drift rates in two-way reciprocal observations (i,j,j',i'). The repeated measurements of point j are subjected to static drift in the geological survey specification. By contrast, the zero drift rate is calculated through regression analysis in the petroleum specification. Different processing methods for the repeated measurement interval of point j yield significantly different zero drift rates based on the two specifications. Through theoretical formula analysis and comparison of measured data, this study analyzed the influence of g'j- g j and t'j-tj in the repeated measurements of point j on the calculation of the zero drift rate. By comparing with the regression analysis, this study illustrated the importance of static drift in reducing the uncertainties caused by instrument performance and measurement environment. Moreover, this study proposed the applicable conditions of the two specifications.
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出版历程
收稿日期:  2022-10-27
修回日期:  2023-05-12
刊出日期:  2023-10-27

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