Page 74 - Demo

A Subsoil Inspection in a Mangrove Habitat Using Electrical Resistivity Tomography62Marine Research of the National Academy of Marine ResearchDOI: 10.29677/MR.202406_4(1).0005 The ERT image technique is a near-surface geophysical inspection approach. The principle of ERT is todevelop an artificial potential field by probing one pair of current electrodes, labelled as A and B, around a target zone. Another pair of potential electrodes, labelled as M and N, are used to measure the ground potential difference as shown in Figure 1.3.2 PrinciplesFigure 1. Electrical resistivity tomography inspection schematics: (a) Dipole-dipole array mode; (b) Pole-diploe array mode.