Plural Electrode System for Determining the Electrical Parameters of Large Samples of Materials in Situ.
DEPARTMENT OF THE AIR FORCE WASHINGTON D C
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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.
- Mining Engineering