| 非水平均匀极化条件下激电中梯ηs曲线及其接头畸变的分析讨论 |
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| 引用本文： | 戴学礼.非水平均匀极化条件下激电中梯ηs曲线及其接头畸变的分析讨论[J].物探与化探,1986,10(4):292-298. |
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| 作者姓名： | 戴学礼 |
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| 作者单位： | 中国有色金属工业总公司华东地质勘探公司八一○队 |
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| 摘 要： | 在实际工作中,由于盲矿体与距离有限的中梯装置两个供电电极之间相互位置的原因,往往使得地下盲矿体实际处于某种非水平均匀极化条件之下,这就使所获得的ηs曲线以及由于移动供电电极获得的ηs曲线接头发生了不同程度的畸变。本文通过模拟激电中梯通常采用的装置形式,以体极化球体为例,运用点电源场公式计算其主剖面上的中梯ηs曲线及其接头来对上述畸变进行分析和讨论。本文还提出了在处理中梯ηs观测资料时应该注意的问题以及对推广激电ηs全域测量法的认识意见。
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A DISCUSSION ON IP INTERMEDIATE-GRADIENT ηs CURVE UNDER THE CONDITION OF NON-HORIZONTALUNIFORM POLARIZATION |
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| Institution: | 810 Party of East China Geological Exploration Cororation, China National Nonferrous Metals Industry Corporation |
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| Abstract: | In practical work, the relative position between the blind orebody and thetwo power-supply electrodes of the intermediate-gradient facility not distant fromthe orebody frequently makes the blind orebody somewhat under the conditionof non-horizontal uniform polarization. This causes the obtained ηs curve and theconnections of the ηs curve formed by movement of the power-supply electrodesto be distorted to some extent.Through simulating the usually-adopted IPintermediate-gradient facilityand taking volume polarization as an example,the present paper makes an ana-lysis and discussion on the above-mentioned distortion by calculating the inter-mediate-gradient ηs curve and its connections with the formula of point powersource. In addition, it mentions some problems that are worth noticing in proces-sing observed intermediate-gradient ηs data and gives some viewe on IP ηs full-field measurement technique that deserves popularization. |
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