Method of investigating the electrical resistivity of the ground

Details Method of investigating the electrical resistivity of the ground Method of investigating the electrical resistivity of the ground

1978-10-02

1981-01-20

Tokar, Michael J.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

Using electrode arrays, circuits, structure, or supports

324323, G01V 300

Patent

active

042465389

ABSTRACT:
In a method of investigating the electrical resistivity of the ground, five electrodes are implanted in the ground at equal spacings along a straight line. An electrical current is passed through the ground between one pair of these electrodes and the potential difference between a further pair of the electrodes is measured. The electrode which is not used in this measurement is at one end of the line. A further measurement is then made with the four electrodes which exclude the electrode at the opposite end of the line. The measurements are combined to provide a measurement of apparent resistivity which is almost unaffected by a local resistivity variation.

REFERENCES:
patent: 2192404 (1940-03-01), Jakosky
patent: 2885633 (1959-05-01), Cook

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