Detail publikace

Noise Infuence of Magnetic Field to Conductivity Image Reconstruction

KŘÍŽ, T.

Originální název

Noise Infuence of Magnetic Field to Conductivity Image Reconstruction

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

The paper presents a conductivity calculation from values of the magnetic flux density measured outside the specimen. There is described the analysis of the noise influence that is presented in the measured values of a magnetic field. A conductivity calculation is based on the electrical impedance tomography (EIT) algorithm. The standard EIT exploited measured voltage values on electrodes placed at specimen boundaries to a conductivity calculation. The direct current source or the low frequency current source is connected to a specimen. A conductivity calculation is based on a minimizing of a suitable objective function. The least squares method is very often used for a minimization of an objective function. The Tikhonov regularization method is used in order to ensure the stability of an algorithm. The stability and the accuracy are dependent on an accuracy of measured voltage values.

Klíčová slova

EIT, magnetic field, conductivity reconstruction, noise influence

Autoři

KŘÍŽ, T.

Rok RIV

2012

Vydáno

30. 8. 2012

Nakladatel

The Electromagnetic Academy

Místo

Cambridge

ISBN

978-1-934142-22-6

Kniha

Proceedings of PIERS 2012 MOSCOW

Strany od

271

Strany do

275

Strany počet

5

BibTex

@inproceedings{BUT94742,
  author="Tomáš {Kříž}",
  title="Noise Infuence of Magnetic Field to Conductivity Image Reconstruction",
  booktitle="Proceedings of PIERS 2012 MOSCOW",
  year="2012",
  pages="271--275",
  publisher="The Electromagnetic Academy",
  address="Cambridge",
  isbn="978-1-934142-22-6"
}