Français
1. Phenomenological approach
The aim of this first section is to present the principle of the method developed for the simple case of a point current injection at the earth's surface.
1.1 Basics of conduction in the earth
Earth is a conductive medium whose equivalent resistivity ranges from 10 Ωm to over 1,000 Ωm for very rocky terrain. This physical property makes it possible to use this medium as a natural conduction element linking several distant sources. Despite its resistivity, which remains high, the volume involved can easily transform this conductor of mediocre resistivity into a "good" conductor.
As with any physical system, this problem is governed by Maxwell's equations [equations (1)...
The Ultimate Scientific and Technical Reference
This article is included in
Electricity networks and applications
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Phenomenological approach
Theoretical approach
Bibliography
Software tools
ALTAIR FLUX, [Flux][Flux-PEEC] 15, chemin de Malacher, 38340 Meylan, France.
MATLAB SIMULINK https://fr.mathworks.com/products/simulink.html
...
The Ultimate Scientific and Technical Reference
