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On the Applying of the Van Der Pauw Method to Anisotropic Media

100%

Kleiza J., Kleiza V.

Acta Physica Polonica A

2011

vol. 119

issue 2

148-150

The paper deals with the ways of finding an electrical conductivity tensor of a plane and anisotropically conductive sample. On the basis of the analysis of currents flowing through the electrodes at vertices of a rectangular sample, we derived specific electrical conductivity tensor calculation formula. The novelty of the present article is the use of the rectangular shape sample with arbitrarily directed sides in respect of the principal axes of the tensor. The influence of values of electrode lengths and the tensor components on the accuracy of these formulae is investigated. An iterative algorithm of increase of precision of calculating the tensor's components is presented.

A Method for Measuring the Specific Electrical Conductivity of an Anisotropically Conductive Medium

81%

Ašmontas S., Kleiza V., Kleiza J.

Acta Physica Polonica A

2008

vol. 113

issue 6

1559-1569

The paper deals with the ways of finding an electrical conductivity tensor of a plane and anisotropically conductive sample. Application of the Van der Pauw method to investigate the conductivity of anisotropically conductive media makes the basis of research. Several models of distribution of the electric field potential are presented, their merits and demerits are discussed, and the necessary physical measurements are indicated. On the basis of these models, the respective calculation expressions of the specific conductivity tensor are derived and algorithms for their realization and error calculation are developed.

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2 Acta Physica Polonica A

1 2011

1 2008

2 Kleiza J.

2 Kleiza V.

1 Ašmontas S.

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On the Applying of the Van Der Pauw Method to Anisotropic Media

A Method for Measuring the Specific Electrical Conductivity of an Anisotropically Conductive Medium