感度合成解析による電位法電極配置探査特性の評価

概要

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For the geoelectrical measurements and their inversion analysis, a more accurate and reliable resistivity data aquisition system is needed more than ever. As the direct current resistivity method most commonly used for the exploration and evaluation of the target inhomogeneity is a very useful and practical tool for the electrical imaging technique so-called resistivity tomography, it may be exceedingly important to incorporate a new sensitivity method developed by the author for determining more exactly the earth resistivity target inhomogeneity, for examples, faults, fractures, layers, water bearing zones, and geological structures under various conditions and environments. Especially, no technique has been investigated to interprete the local and lateral resistivity changes of the near surface inhomogeneities and detailed deep massive resistivity structures. In this paper, by composite analysis of sensitivity distributions, the author has clarified the relation among various surface electrode arrays. The two-electrode system, the four-elctrode systems such as the Wenner, the Eltran and the Staggered electrode configuration(so-called the tripotential system)and the six-electrode system have been discussed. Also an example of the sensitivity composite analysis for the solid electrode array system has been investigated as an aid to analyze the response caused by target inhomogeneity more practically.
社団法人日本材料学会の論文
1995-09-15