The Use Of A Coarse BEM Mesh To Speed Up The Optimisation Process In Inverse Electrical Impedance Tomography
Price
Free (open access)
Transaction
Volume
37
Pages
10
Published
2004
Size
226 kb
Paper DOI
10.2495/BE040241
Copyright
WIT Press
Author(s)
N.S. Mera, L. Elliott & D.B. Ingham
Abstract
A reduced model technique based on a coarse boundary element method (BEM) mesh is developed in order to increase the rate of convergence of a genetic algorithm (GA) used for solving a non-destructive evaluation problem. The inverse problem investigated consists of identifying the geometry of discontinuities in a conductive material with isotropic conductivity from Cauchy data measurements taken on the boundary. In this study we use a coarse BEM to provide problem specific information for the GA operators in order to detect efficiently, from a computational time point of view, an isotropic inclusion, such as a circle. The genetic algorithms based method developed is found
Keywords