The physical simulation of symmetry four-electrode DC resistivity method base on the compensate electrode

摘要

Firstly, a new DC resistivity detecting method base on compensate electrode is introduced and the basic principle of experiment design is analyzed simply. The flume experiment system design is described in detail. The experiment results are analyzed according to the three parameter types of measurement curves. The simulation result shows that the abnormity extent of the DC resistivity detecting method base on compensate electrode is bigger than the general ones; The abnormity extent is linear with the parameter τ, It is a perfect choose to get a middle λ value; There is a large difference to the exquisite form if different λ or τ value is chose to the same geology object.