MODELING OF 3-DIMENSIONAL RESISTIVE DISCONTINUITIES USING HSPICE

This paper describes how the circuit analysis package HSPICE can be us ed to model an electrical resistance tomography system in two and thre e dimensions. Reasons for developing an HSPICE model using discrete co mponents are introduced followed by a discussion of the theory underly ing this technique. Image reconstructions using a simplified back proj ection algorithm are presented which simulate the movement of resistiv e discontinuities through an electrode plane in an attempt to investig ate process flows.