Use of the Linear Grid Array in 2D Resistivity Tomography

A023 USE OF THE LINEAR GRID ARRAY IN 2D RESISTIVITY TOMOGRAPHY Introduction 1 In resistivity tomography the choice of a particular array rather than another can bring substantial differences in results also depending on the geometry and resistivity of investigated structures. Main differences regard spatial resolution production of artefacts in the images as well as deviation from the true model resistivity. Recently some multi-channel acquisition systems promoted using new array configurations in addition to the “classical” ones that enable many simultaneous measurements for each current injection dipole thus reducing the field-work time significantly. Examples of this kind of arrays are