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使用嵌入在两层中的球形尖端圆柱形电极进行电阻率测量。

Electrical Resistivity Measurement with Spherical-Tipped Cylindrical Electrode Embedded on Two Layers.

作者信息

Hong Chang-Ho, Chong Song-Hun, Cho Gye-Chun

机构信息

Division of Radioactive Waste Disposal Research, Korea Atomic Energy Research Institute (KAERI), Daejeon 34057, Korea.

Department of Civil Engineering, Sunchon National University, Jungang-ro 255, Sunchon 57922, Korea.

出版信息

Materials (Basel). 2020 May 6;13(9):2144. doi: 10.3390/ma13092144.

DOI:10.3390/ma13092144
PMID:32384701
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7254359/
Abstract

Complex geological processes form multiple layers and change pore water chemistry, saturation level, and temperature. Eventually, the strata hinder interpreting electrical resistivity data. There are no studies that theoretically explore the effects of electrode geometries and multiple layered systems on laboratory electrical resistivity measurements. This study formulates a theoretical electrical resistance between half spherical-tipped cylindrical electrodes embedded on two horizontal layers. The electrical resistivity of each layer is considered separately in the general electrical potential equation with different equipotential surface areas. The finite element analysis is conducted to validate the theoretical equation. Further interpretation provides insights into the distribution of electrical current flow under electrical resistivity mismatch for discussion.

摘要

复杂的地质过程形成了多个地层，并改变了孔隙水化学、饱和度和温度。最终，这些地层阻碍了对电阻率数据的解释。目前尚无理论探讨电极几何形状和多层系统对实验室电阻率测量的影响的研究。本研究推导了埋于两个水平地层上的半球形尖端圆柱形电极之间的理论电阻。在具有不同等势表面积的一般电势方程中分别考虑了各层的电阻率。进行了有限元分析以验证理论方程。进一步的解释为讨论电阻率不匹配情况下电流的分布提供了见解。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6ec/7254359/becb6cbdb5a7/materials-13-02144-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6ec/7254359/4fa38fad9878/materials-13-02144-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6ec/7254359/bb9aece6934a/materials-13-02144-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6ec/7254359/b07b2158a43f/materials-13-02144-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6ec/7254359/f37787365a39/materials-13-02144-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6ec/7254359/9a99ffec2bf1/materials-13-02144-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6ec/7254359/becb6cbdb5a7/materials-13-02144-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6ec/7254359/4fa38fad9878/materials-13-02144-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6ec/7254359/bb9aece6934a/materials-13-02144-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6ec/7254359/b07b2158a43f/materials-13-02144-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6ec/7254359/f37787365a39/materials-13-02144-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6ec/7254359/9a99ffec2bf1/materials-13-02144-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d6ec/7254359/becb6cbdb5a7/materials-13-02144-g006.jpg

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本文引用的文献

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Characterization of Cementation Factor of Unconsolidated Granular Materials Through Time Domain Reflectometry with Variable Saturated Conditions.通过时域反射仪在可变饱和条件下对松散粒状材料胶结因子的表征
Materials (Basel). 2019 Apr 24;12(8):1340. doi: 10.3390/ma12081340.
2
Temperature-electrical conductivity relation of water for environmental monitoring and geophysical data inversion.用于环境监测和地球物理数据反演的水的温度-电导率关系
Environ Monit Assess. 2004 Aug-Sep;96(1-3):119-28. doi: 10.1023/b:emas.0000031719.83065.68.