Multiphase permittivity imaging using absolute value electrical capacitance tomography data and a level set algorithm
نویسندگان
چکیده
منابع مشابه
Multiphase permittivity imaging using absolute value electrical capacitance tomography data and a level set algorithm.
Multiphase flow imaging is a very challenging and critical topic in industrial process tomography. In this article, simulation and experimental results of reconstructing the permittivity profile of multiphase material from data collected in electrical capacitance tomography (ECT) are presented. A multiphase narrowband level set algorithm is developed to reconstruct the interfaces between three-...
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Electrical capacitance tomography (ECT) is a technique for obtaining crosssectional images of the electrical permittivity distribution inside an electrically non-conducting body. It can be used to map the composition of two-phase mixtures like gas-oil systems and provides a useful tool for multiphase flow visualization and measurement and potential applications in petroleum industry. The ECT se...
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Electrical Capacitance Tomography is a non intruding technique used in industries. It is based on measuring the capacitance of multi-electrode ECT sensor produced by the change in dielectricity or due to change in concentration of material. With the use of computed values, a cross sectional image of the material placed in the dielectric medium is obtained. ECT system can be used in chemical fie...
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In this paper we introduce an image reconstruction technique for imaging permittivity distributions using electrical capacitance tomography, based on global optimization by very fast simulated annealing. Electrical capacitance measurement data are obtained between electrodes placed around the outer wall of an electrically insulating pipe. Such data are used to infer material distributions insid...
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Electrical capacitance tomography (ECT) technology has the softfield nature and the ill-posed problems. To solve the problem of low imaging quality by standard Tikhonov regularization, a wavelet fusion algorithm based on Tikhonov regularization is proposed in this paper. Firstly, Tikhonov regularization method is used to solve ill-posed characteristic of system inverse problem, then the initial...
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ژورنال
عنوان ژورنال: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
سال: 2016
ISSN: 1364-503X,1471-2962
DOI: 10.1098/rsta.2015.0332