Method for monitoring an area of the surface of the earth

Details Method for monitoring an area of the surface of the earth Method for monitoring an area of the surface of the earth

1993-10-14

1996-05-07

O'Shea, Sandra L.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

Using electrode arrays, circuits, structure, or supports

324354, G01V 302, G01V 304

Patent

active

055149634

ABSTRACT:
A method for monitoring an area of the surface of the earth uses measurement probes arranged in a grid for determining the self-potential with respect to a base probe. The measurement probes are interrogated repeatedly. The earth resistance between measurement probes and the base probe is also measured repeatedly between measurements of self-potential. Potentials on the surface of an area of the earth can be determined precisely, independently of earth-resistance changes.

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patent: 4296379 (1981-10-01), Yoshizumi
patent: 4752881 (1988-06-01), Griffiths et al.
patent: 4760340 (1988-07-01), Denzau et al.
patent: 4804906 (1989-02-01), Hamberg et al.
patent: 4875015 (1989-10-01), Ward
patent: 5200705 (1993-04-01), Clark et al.

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