The Effect of Electrode Arrangements on Concrete Defect Test Using Electrical Resistance Tomography

摘要

Electrical resistance tomography (ERT) is an imaging modality in which the internal conductivity distribution of the target is reconstructed on the basis of surface voltage measurements. It is assumed that the spatial resolution of the reconstructed images with an electrical resistance tomography system can be consummated by electrode arrangements. In this thesis, the key issues with electrode arrangements will be discussed. To investigate the effect of different electrode arrangements, a series of simulation and experiments were designed. Compared to uniform distribution of electrode arrangements, simulation and experimental results show that the imaging reconstruction is varied. Distribution uniformity of electrodes is directly related to the quality of the imaging.