<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This paper is concerned with a physical model of an interdigitated sensor working in a frequency range from 100 Hz to 10 MHz. A theoretical approach is proposed to optimize the use of the sensor for bioimpedance spectroscopy. The correlation between design parameters and frequency behavior in coplanar impedance sensors are described. CoventorWare<sup>®</sup> software was used to model the biological medium loaded interdigital sensor in three dimensions to measure its electrical impedance. Complete system simulation by a finite element method (FEM) was used for sensor sensitivity optimization. The influence of geometrical parameters (number of fingers, width of the electrodes) on the impedance spectroscopy of the biological medium was studied. The simulation results are in agreement with the theoretical equations of optimization. Thus, it is possible to design <italic>a priori</italic> such sensor by taking into account the biological medium of interest that will load the sensor.</p></abstract>

This paper is concerned with a physical model of an interdigitated sensor working in a frequency range from 100 Hz to 10 MHz. A theoretical approach is proposed to optimize the use of the sensor for bioimpedance spectroscopy. The correlation between design parameters and frequency behavior in coplanar impedance sensors are described. CoventorWare® software was used to model the biological medium loaded interdigital sensor in three dimensions to measure its electrical impedance. Complete system simulation by a finite element method (FEM) was used for sensor sensitivity optimization. The influence of geometrical parameters (number of fingers, width of the electrodes) on the impedance spectroscopy of the biological medium was studied. The simulation results are in agreement with the theoretical equations of optimization. Thus, it is possible to design a priori such sensor by taking into account the biological medium of interest that will load the sensor.

Geometric parameters optimization of planar interdigitated electrodes for bioimpedance spectroscopy

Journal of Electrical Bioimpedance

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

This paper is concerned with a physical model of an interdigitated sensor working in a frequency range from 100 Hz to 10 MHz. A theoretical approach is...

Geometric parameters optimization of planar interdigitated electrodes for bioimpedance spectroscopy

Article Category: Articles

Published Online: Mar 01, 2013

Page range: 13 - 22

Received: Jun 04, 2012

DOI: https://doi.org/10.5617/jeb.304

Keywords
Bioimpedance, planar interdigitated electrodes, FEM simulation, design optimization

© 2013 M. Ibrahim, J. Claudel, D. Kourtiche and M. Nadi, published by Sciendo

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

Geometric parameters optimization of planar interdigitated electrodes for bioimpedance spectroscopy

Article Category: Articles

Published Online: Mar 01, 2013

Page range: 13 - 22

Received: Jun 04, 2012

DOI: https://doi.org/10.5617/jeb.304

KeywordsBioimpedance, planar interdigitated electrodes, FEM simulation, design optimization

© 2013 M. Ibrahim, J. Claudel, D. Kourtiche and M. Nadi, published by Sciendo

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

Keywords
Bioimpedance, planar interdigitated electrodes, FEM simulation, design optimization