SIMULATION STUDY OF THE ELECTRODE ARRAY USED IN AN ERT SYSTEM

Using an established finite-element simulation software suite develope d in Tianjin, the authors analysed some factors which influenced the s ensing field of an electrical resistance tomography (ERT) system. In o rder to improve the space evenness of the sensing field and 'focus' it s effective measurement space, the authors described a guard electrode scheme, which improved both the quality of the reconstructed image an d the delineation of conductive regions within the vessel. (C) 1997 El sevier Science Ltd. All rights reserved.