Geometric parameters optimization of planar interdigitated electrodes for bioimpedance spectroscopy

M. Ibrahim,J. Claudel,D. Kourtiche,M. Nadi

Published 2013 in Journal of Electrical Bioimpedance

ABSTRACT

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.

PUBLICATION RECORD

  • Publication year

    2013

  • Venue

    Journal of Electrical Bioimpedance

  • Publication date

    2013-01-01

  • Fields of study

    Medicine, Engineering

  • Identifiers
  • External record

    Open on Semantic Scholar

  • Source metadata

    Semantic Scholar

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