A New Approach to the Reconstruction Problem of Electrical Impedance Tomography
by
Catherine Belward
Department of Chemical Engineering, University of Queensland
Coauthors: Tony Howes (Department of Chemical Engineering, University of Queensland), Lawrence Forbes (Department of Mathematics, University of Queensland)

In this talk, I will describe investigations of a new approach to solving the inverse problem of Electrical Impedance Tomography (EIT) applied to pipelines. In EIT, a pipeline (or other interesting object) is surrounded with electrodes. A source of current is 'injected' into one electrode and removed from another. At all of the other electrodes, the resulting voltage is measured.

The accepted and much used algorithm by most engineers in the field divides the cross-section of interest into a mesh and solves for the conductivity of each element. In this new approach, the problem is simplified so that analytical techniques can be employed. The simplification also imposes a regularisation of the problem which improves the stability of the algorithm.

Date received: July 30, 1999

Copyright © 1999 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # cadk-78.