Detail publikačního výsledku

Effective defect identifications in honeycombs

DĚDKOVÁ, J.

Originální název

Effective defect identifications in honeycombs

Anglický název

Effective defect identifications in honeycombs

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

The image reconstruction problem based on Electrical Impedance Tomography (EIT) is an ill-posed inverse problem of finding such conductivity distribution that minimizes some optimisation criterion, which can be given by a suitable primal objective function. This paper describes new algorithms for the reconstruction of the surface conductivity distribution, which are based on stochastic methods to be used for the acquirement of more accurate reconstruction results and stable solution. The proposed methods are expected to non-destructive test of materials. There are shown examples of the identification of voids or cracks in special structures called honeycombs. Instead of the experimental data we used the phantom evaluated voltage values based on the application of finite element method. The results obtained by this new approach are compared with results from the known deterministic approach to the same image reconstruction.

Anglický abstrakt

The image reconstruction problem based on Electrical Impedance Tomography (EIT) is an ill-posed inverse problem of finding such conductivity distribution that minimizes some optimisation criterion, which can be given by a suitable primal objective function. This paper describes new algorithms for the reconstruction of the surface conductivity distribution, which are based on stochastic methods to be used for the acquirement of more accurate reconstruction results and stable solution. The proposed methods are expected to non-destructive test of materials. There are shown examples of the identification of voids or cracks in special structures called honeycombs. Instead of the experimental data we used the phantom evaluated voltage values based on the application of finite element method. The results obtained by this new approach are compared with results from the known deterministic approach to the same image reconstruction.

Klíčová slova

image reconstruction, electrical impedance tomography, EIT

Klíčová slova v angličtině

image reconstruction, electrical impedance tomography, EIT

Autoři

DĚDKOVÁ, J.

Rok RIV

2010

Vydáno

20.05.2008

Nakladatel

University of Žilina

Místo

Slovakia

ISSN

1336-1376

Periodikum

Advances in Electrical and Electronic Engineering

Svazek

08

Číslo

7

Stát

Česká republika

Strany od

301

Strany do

304

Strany počet

406

BibTex

@article{BUT47950,
  author="Jarmila {Dědková}",
  title="Effective defect identifications in honeycombs",
  journal="Advances in Electrical and Electronic Engineering",
  year="2008",
  volume="08",
  number="7",
  pages="301--304",
  issn="1336-1376"
}