<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Electrical impedance measurements of a suspension have to take into account the double layer impedance that results from a very thin charged layer formed at the electrode-electrolyte interface. A dedicated measuring cell that enables variation of the distance between the electrodes was developed to investigate the electrical properties of suspensions using two-electrode impedance measurements. By varying the distance between the electrodes it is possible to separate the double layer and the suspension impedance from the measured data. Electrical ‘lumped’ models have been developed from measured and extracted impedances. The error of non-inclusion of the double layer impedance has been analyzed. The error depends on the frequency of the measurement as well as the distance between the electrodes.</p></abstract>

Electrical impedance measurements of a suspension have to take into account the double layer impedance that results from a very thin charged layer formed at the electrode-electrolyte interface. A dedicated measuring cell that enables variation of the distance between the electrodes was developed to investigate the electrical properties of suspensions using two-electrode impedance measurements. By varying the distance between the electrodes it is possible to separate the double layer and the suspension impedance from the measured data. Electrical ‘lumped’ models have been developed from measured and extracted impedances. The error of non-inclusion of the double layer impedance has been analyzed. The error depends on the frequency of the measurement as well as the distance between the electrodes.

Analysis of impedance measurements of a suspension of microcapsules using a variable length impedance measurement cell

Journal of Electrical Bioimpedance

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Electrical impedance measurements of a suspension have to take into account the double layer impedance that results from a very thin charged layer formed at...

Analysis of impedance measurements of a suspension of microcapsules using a variable length impedance measurement cell

Article Category: Articles

Online veröffentlicht: 21. Okt. 2012

Seitenbereich: 42 - 50

Eingereicht: 23. Nov. 2011

DOI: https://doi.org/10.5617/jeb.215

Schlüsselwörter
Suspension impedance, double layer, paraffin microcapsules, lumped model

© 2012 Dejan Križaj, Borut Pečar, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Analysis of impedance measurements of a suspension of microcapsules using a variable length impedance measurement cell

Article Category: Articles

Online veröffentlicht: 21. Okt. 2012

Seitenbereich: 42 - 50

Eingereicht: 23. Nov. 2011

DOI: https://doi.org/10.5617/jeb.215

SchlüsselwörterSuspension impedance, double layer, paraffin microcapsules, lumped model

© 2012 Dejan Križaj, Borut Pečar, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Schlüsselwörter
Suspension impedance, double layer, paraffin microcapsules, lumped model