Depth of investigation in wenner, three-electrode and dipole-dipole DC resistivity methods
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Using a method and definition given earlier (Roy and Apparao, 1971), this paper computes the depths of investigation in homogeneous ground for (a) the Wenner α, β and γ configurations, (b) the three electrode system and (c) the dipole-dipole arrangements when the dipole lengths are not infinitesimally small. The results for (a) and (b) have been summarised in a table, while those for (c) are shown as contour diagrams. In all the dipolar arrangements examined in this paper, except the equatorial, the depth of investigation decreases (and the vertical resolution increases) with increase in any or both of the dipole lengths. For the equatorial set up, this decrease (or increase) is very small.
[1] S. S. West. THREE‐LAYER RESISTIVITY CURVES FOR THE ELTRAN ELECTRODE CONFIGURATION , 1940 .
[2] A. Apparao,et al. Depth Of Investigation In Direct Current Methods , 1971 .
[3] A. Roy,et al. RELATIVE CONTRIBUTION TO SIGNAL BY GROUND ELEMENTS IN TWO‐COIL INDUCTION LOGGING SYSTEM* , 1970 .
[4] E. W. Carpenter,et al. A tri-potential method of resistivity prospecting , 1956 .
[5] E. W. Carpenter. Some notes concerning the Wenner configuration , 1955 .