Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports
Patent
1984-07-12
1987-08-11
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
Using electrode arrays, circuits, structure, or supports
324347, G01V 0312
Patent
active
046864750
ABSTRACT:
An improved passive telluric current system for geophysical prospecting having a sensor responsive to the electric field component of the telluric current for producing a capacitive charge, a tuner for deconvoluting the sensed electric field telluric signal, and a cross-over circuit for generating a stereo audio output containing the telluric information into a low band audio signal and into a high band audio signal in order to enhance the frequency transitions contained in the telluric signal in the ears of the operator.
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Kober Carl L.
Procter-Gregg H. David
Denver Mineral Exploration Corp.
Dorr Robert C.
Edmonds Warren S.
Eisenzopf Reinhard J.
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