Electrical Impedance Tomography in the Testing of Material Defects

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F17%3APU126069" target="_blank" >RIV/00216305:26220/17:PU126069 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/8261712" target="_blank" >https://ieeexplore.ieee.org/document/8261712</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/PIERS.2017.8261712" target="_blank" >10.1109/PIERS.2017.8261712</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electrical Impedance Tomography in the Testing of Material Defects

Popis výsledku v původním jazyce

The paper describes using electrical impedance tomography in non-destructive material testing. Under certain Neumann and Dirichlet boundary conditions, the forward EIT computation yields an estimation of the electric potential field in the interior of the volume. The FEM, in 2D or 3D, is exploited for the forward problem with current sources. Image reconstruction in EIT is an inverse problem, usually presented as minimizing a suitable objective function. To minimize this function, we can use the deterministic approach based on the method of least squares. Due to the ill-posed character of the problem, a regularization procedure, such as that embodied in standard Tikhonov regularization, has to be used. Electrical impedance tomography is a widely employed approach with numerous applications in, for example, physics and biology. As regards the former discipline, geophysical imaging is utilized in both searching underground conducting fluid columns near the surface and obtaining information about rock porosity or fracture formation. Other applications of EIT include the non-destructive testing and identification of material defects such as cracks or the identification of corrosion in materials.

Název v anglickém jazyce

Electrical Impedance Tomography in the Testing of Material Defects

Popis výsledku anglicky

The paper describes using electrical impedance tomography in non-destructive material testing. Under certain Neumann and Dirichlet boundary conditions, the forward EIT computation yields an estimation of the electric potential field in the interior of the volume. The FEM, in 2D or 3D, is exploited for the forward problem with current sources. Image reconstruction in EIT is an inverse problem, usually presented as minimizing a suitable objective function. To minimize this function, we can use the deterministic approach based on the method of least squares. Due to the ill-posed character of the problem, a regularization procedure, such as that embodied in standard Tikhonov regularization, has to be used. Electrical impedance tomography is a widely employed approach with numerous applications in, for example, physics and biology. As regards the former discipline, geophysical imaging is utilized in both searching underground conducting fluid columns near the surface and obtaining information about rock porosity or fracture formation. Other applications of EIT include the non-destructive testing and identification of material defects such as cracks or the identification of corrosion in materials.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

PIERS 2017 Proceedings

ISBN

978-1-5090-6269-0

ISSN

—

e-ISSN

—

Počet stran výsledku

5

Strana od-do

90-94

Název nakladatele

Neuveden

Místo vydání

neuveden

Místo konání akce

Petrohrad

Datum konání akce

22. 5. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000427596700013