Accession Number : ADD002989
Title : Plural Electrode System for Determining the Electrical Parameters of Large Samples of Materials in Situ.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C
Personal Author(s) : Bliamptis,Emmanuel E
Report Date : 17 Aug 1976
Pagination or Media Count : 7
Abstract : The patent describes 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; and an impedance characteristic is determined for each cell. The presence of inhomogeneity and anisotropy is reflected by unequal currents in geometrically equivalent cells.
Descriptors : *Geophysical prospecting, *Patents, Arrays, Electrodes, Boreholes, Electrical properties, Materials, Rock, Soil tests, Test equipment, Test and evaluation
Subject Categories : Mining Engineering
Distribution Statement : APPROVED FOR PUBLIC RELEASE