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- W2124998732 abstract "1. Abstract Electrical Impedance Tomography (EIT) images internal objects within a body. Electrodes are attached to the boundary of the body, low intensity alternated currents are applied and the resulting electric potentials are measured. Then, an estimation algorithm obtains the internal admittivity distribution, which corresponds to the image. There are several problems inherent to the admittivity estimation, for instance, high sensitivity to noise and poor conditioning of the sensitivity matrix (which relates changes of conductivity to changes of electric potentials and is utilized in algorithms based on Newton-type techniques). Some authors reported the reduction of the efiects of such problems for some conflgurations of electrodes. In this work, we propose a systematic way to reduce the sensitivity to noise and the poor conditioning by obtaining the optimal position of electrodes and also their shapes based on the Topology optimization Method (TOM). The 2D results showing the obtained electrodes suggest that this method can be applied to design electrodes, considering the optimization of the condition number of the sensitivity matrix as well as the summation of the singular values of that matrix as objective function. 2. Keywords: Electrodes, design, electrical impedance tomography, topology optimization." @default.
- W2124998732 created "2016-06-24" @default.
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- W2124998732 date "2008-01-01" @default.
- W2124998732 modified "2023-09-26" @default.
- W2124998732 title "On the Design of Electrodes through the Topology Optimization Method applied to Electrical Impedance Tomography" @default.
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