| 点源二维电场中纵剖面上电位的计算 |
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| 引用本文： | 徐世浙, 刘斌, 周辉. 点源二维电场中纵剖面上电位的计算[J]. 地球物理学报, 1996, 39(04): 551-560, |
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| 作者姓名： | 徐世浙 刘斌 周辉 |
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| 作者单位： | 青岛海洋大学地质地球物理研究所, 青岛 266003 |
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| 摘 要： | 将总电位ν分解为正常电位．ｕｏ和异常电位ｕ·本文绘出点源二维电场中，异常电位ｕ的傅氏变换Ｕ的变分方程，以及点源二维电场地形影响的异常电位ｕ的傅氏变换Ｕ的积分方程，前者可用有限单元法求解，后者可用边界单元法求解．根据电源点的Ｕ的傅氏反交换，解决了前人尚未解决的直接计算点源二维电场中纵剖面（通过电源点、平行走向的剖面）的电位问题．
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| 关 键 词： | 电阻率法 点源二维电场 异常电位 纵剖面 |
| 收稿时间： | 1991-01-09 |
| 修稿时间： | 1996-01-26 |
THE CALCULATION OF POTENTIALS AT LONGITUDINAL SECTION IN 2-D ELECTRICAL FIELD WITH POINT SOURCE |
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| XU SHI-ZHE, LIU BIN, ZHOU HUI. THE CALCULATION OF POTENTIALS AT LONGITUDINAL SECTION IN 2-D ELECTRICAL FIELD WITH POINT SOURCE[J]. Chinese Journal of Geophysics (in Chinese), 1996, 39(04): 551-560, |
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| Authors: | XU SHI-ZHE LIU BIN ZHOU HUI |
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| Affiliation: | Institute of Geology and Geophysics, Ocean University of Qingdao, Qingdao 266003, China |
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| Abstract: | Total potentials v are divided into normal potential uo and anomaly potential u.This paper gives:1)the variational equation of Fourier transformed potential U rom anomaly potential u in 2-D electrical field with point source,and 2)the integral equation of Fourier transformed potential U from anomaly potential u caused by terrain. The finite element method is used to solve the variational equation,and the boundary element method Is used to solve the integral equation.From the inverse Fourier information of U at point source, We can directly calculate the potentials at longitudinal section pass through the point source. |
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| Keywords: | Resistivity surveys 2-D electrical field with point source Anomaly potential Longitudinal section |
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