Methods and apparatus for measuring electrical properties of a ground using a graphite electrode
AssigneeAdvanced Geosciences, Inc.
InventorMats Lagmanson
Life of this patent
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Abstract
Methods and apparatuses for measuring an electrical property of the ground. The apparatus includes a graphite electrode. The graphite electrode includes a graphite body and a first and second opening. The first opening extends longitudinally throughout the graphite body and is configured to receive a multi-wire cable. The second opening is configured to secure one or more wires of the multi-wire cable to the graphite body. Using a graphite electrode, measurements of the ground can be made over a long period of time without having to clean or otherwise maintain the electrodes because the graphite material withstands operating conditions over many years without degradation.
Claims20
An electrode for measuring a property of a ground, comprising:
- a graphite body;
- a first opening extending longitudinally throughout the graphite body that receives a multi-wire cable;
- and
- a second opening within the graphite body that affixes one or more wires of the multi-wire cable to the graphite body.
A method for measuring an electrical property of a ground, comprising:
- positioning a graphite electrode adjacent the ground;
- passing a multi-wire cable through a first opening extending longitudinally throughout the graphite electrode;
- affixing one or more wires of the multi-wire cable to the graphite electrode using a second opening within the graphite electrode;
- delivering a current to the ground using the graphite electrode;
- and
- measuring an electrical potential associated with the current.
A method for long-term, maintenance-free measurement of an electrical property of a ground, comprising:
- positioning a graphite electrode underground or underwater for more than three months without removing the electrode for replacement or cleaning;
- passing a multi-wire cable through a first opening extending longitudinally throughout the graphite electrode;
- affixing one or more wires of the multi-wire cable to the graphite electrode with a screw coupled to the graphite electrode;
- delivering a current to the ground using the graphite electrode after three months of being underground or underwater and not having been replaced or cleaned;
- and
- measuring an electrical potential associated with the current.
Dependencies are inferred from the claim text.