Determination of three-layer earth model from Wenner four-probe test data

Based on the solution of the electric field inverse problem, an efficient method for determining three-layer earth models and parameters from Wenner's four-probe test data is presented, i.e., from a set of voltage values measured on the earth surface due to the current injected into the earth....

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Bibliographic Details
Published in:IEEE transactions on magnetics 2001-09, Vol.37 (5), p.3684-3687
Main Authors: Yang, Huina, Yuan, Jiansheng, Zong, Wei
Format: Article
Language:English
Subjects:
Algorithms
Applied classical electromagnetism
Computer simulation
Current measurement
Earth
Earth models
Electric fields
Electric variables measurement
Electromagnetism
electron and ion optics
Electrostatics. Poisson and laplace equations, boundary-value problems
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Grounding
Inverse problems
Iterative algorithms
Iterative methods
Magnetism
Mathematical models
Nonlinear systems
Physics
Testing
Voltage measurement
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Summary:Based on the solution of the electric field inverse problem, an efficient method for determining three-layer earth models and parameters from Wenner's four-probe test data is presented, i.e., from a set of voltage values measured on the earth surface due to the current injected into the earth. The speed of the iterative convergence is increased by employing the generalized inverse algorithm for solving the relevant nonlinear system of equations, and using a suitable method for determining initial values for the iterative process. The earth structure is the field model for simulating grounding electrodes or grounding grids of substations. The determination of the structure is essential in the simulation and the design of grounding grids.
ISSN:0018-9464
1941-0069
DOI:10.1109/20.952690