TECHNOLOGY: GEOLECTRICS AND ELECTROMAGNETICS
Geoelectrical and electromagnetic methods base on the measurement of the electrical conductivity, the electrical chargeability (IP effect) or natural self-potentials (SP).
The various possibilities of modular geoelectrical measuring systems reaches from 1D soundings, 2D imaging- vertical or horizontal to the application of the 3D Geoelectrical Tomography (Electrical Resistivity Tomography – ERT).
   
Inductive electromagnetic measurements work without coupling to the ground resulting in a fast overview of underground structures.
 


Scheme of 2D electrical imaging