A method and system for measuring the grounding resistance of a deep-well geoelectric resistivity observation electrode
By employing a multi-electrode combined power supply method and simultaneous equation calculations in deep well resistivity observations, the problem of accurate measurement of deep well electrode grounding resistance was solved, achieving high-precision electrode grounding resistance measurement and meeting the reliability requirements of seismic observations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Filing Date
- 2026-04-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies cannot accurately calculate the electrode grounding resistance in deep well resistivity observations. The traditional three-electrode method yields inaccurate results, failing to meet the reliability requirements of high-precision and long-period seismic observations.
By employing a power supply method with at least three electrodes, a system of simultaneous equations is established by measuring the power supply current and potential difference. The sum of the grounding resistance and line resistance of the electrodes is calculated, and the grounding resistance of the electrodes is accurately measured by combining a DC regulated current or voltage power supply.
It enables precise measurement of the grounding resistance of electrodes for deep well resistivity observation, improves the measurement accuracy and reliability of electrode grounding resistance, and meets the requirements of high-precision seismic observation.
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