| Issue |
2013
16th International Congress of Metrology
|
|
|---|---|---|
| Article Number | 11007 | |
| Number of page(s) | 4 | |
| Section | Métrologie électrique / Electrical metrology | |
| DOI | https://doi.org/10.1051/metrology/201311007 | |
| Published online | 07 October 2013 | |
Grid-based computational algorithm for accurate AC conductivity measurements
1 Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia
2 Metrosert AS - Central Office for Metrology, Teaduspargi 8, 12618 Tallinn, Estonia
3 Riga Technical University, 1 Meza street, Riga LV-1048, Latvia
a Corresponding author: andrei.pokatilov@ttu.ee
A novel computational method is proposed for the accurate determination of the electrical conductivity of non-ferrous metal samples in the wide frequency range. The forward and inverse problems solution have been proposed allowing computation of the AC conductivity value from the electrical impedance change measurements of a thoroughly characterised inductive sensor. The developed method is applicable in the accurate electrical conductivity measurements at frequencies up to 500 kHz with the measurement uncertainty less than 1 % of the measured value.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.