| 近区瞬变测深法中发射源AB和接收回线的非偶极影响及校正 |
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| 引用本文： | 李吉松,朴化荣.近区瞬变测深法中发射源AB和接收回线的非偶极影响及校正[J].吉林大学学报(地球科学版),1993(2). |
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| 作者姓名： | 李吉松 朴化荣 |
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| 作者单位： | 长春地质学院地球物理系
(李吉松)，长春地质学院地球物理系(朴化荣) |
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| 摘 要： | 在近区瞬变测深法野外工作中,由于测点离发射源很近,所以发射极距AB和接收回线的非偶极影响存在。通过推导出非偶极状态下的均匀大地解析表达式,分析和计算出了其影响误差范围。发现发射极距AB的非偶极影响特性与理想偶极时不同发收距r的影响特性极其相似。利用该特点找出了在原有理论量板上校正AB非偶极影响的有效方法,并给出了校正系数表。
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| 关 键 词： | 近区瞬变测深法 非偶极影响 AB发射装置 回线接收装置 虚拟距离 |
RESEARCH AND CORRECTION OF NON-DIPOLE INFLUENCE OF TRANSMITTER AB AND RECEIVER IN NEAR-ZONE TDEM |
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| Li Jisong Piao Huarong.RESEARCH AND CORRECTION OF NON-DIPOLE INFLUENCE OF TRANSMITTER AB AND RECEIVER IN NEAR-ZONE TDEM[J].Journal of Jilin Unviersity:Earth Science Edition,1993(2). |
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| Authors: | Li Jisong Piao Huarong |
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| Institution: | Department of Applied Geophysics |
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| Abstract: | In near-zone TDEM field work , T-R distances arc so short that transmitter AB and receiver can no longer be taken as dipolc . By deriving on condition of difi-nitc AB and loop size ,thc authors calculate the non-dipolc influences of AB and loop size. The character of the influences arc just coincided with that of T-R distances . Using this coincidence, a correcting method of non-dipolc influence is obtained and the correction coefficients is also presented |
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| Keywords: | near-zone TDEM non-dipolc influence transmitter AB loop receiver pscudo-distance |
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