Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1974-03-29
1976-08-17
Strecker, Gerard R.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 10, G01V 306
Patent
active
039756769
ABSTRACT:
A system and method for determining the electrical parameters of large samples of materials in situ. A set of linear electrodes in boreholes forms a square pattern; positive and negative electrical potentials on alternate electrodes create symmetry planes which define several "cells"; a given fraction of electrical current leaves an electrode and reaches a corresponding electrode, an impedance characteristic is determined for each cell. The presence of inhomogeneity and anisotropy is reflected by unequal currents in geometrically equivalent cells.
REFERENCES:
patent: 1842362 (1932-01-01), Nichols et al.
patent: 1906271 (1933-05-01), Jakosky
patent: 2172778 (1939-09-01), Taylor
patent: 2176758 (1939-10-01), Borden
patent: 2183565 (1939-12-01), Hawley
patent: 2293024 (1942-08-01), Klipsch
patent: 2314597 (1943-03-01), Phelan
patent: 2440693 (1948-05-01), Lee
patent: 2605321 (1952-07-01), Owen
patent: 3641427 (1972-02-01), Pittman et al.
patent: 3838335 (1974-09-01), Miller
Miller Henry S.
Rusz Joseph E.
Strecker Gerard R.
The United States of America as represented by the Secretary of
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