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Description of corrections on electrode polarization impedance using isopotential interface factor Cover

Description of corrections on electrode polarization impedance using isopotential interface factor

Journal of Electrical Bioimpedance
Volume 3 (2012): Issue 1 (January 2012)
By: J. A. Gómez-Sánchez and  C. J. Felice  
Open Access
|Aug 2012

Figures & Tables

Figure 1

Electrode shapes. (a) Adjacent tetrapolar. (b) Axial concentric tetrapolar. The arrows show the dimension in millimeters.
Electrode shapes. (a) Adjacent tetrapolar. (b) Axial concentric tetrapolar. The arrows show the dimension in millimeters.

Figure 2

Schematic measurements in muscle (a) Measurements along longitudinal direction of fiber axis with both electrode configurations (b) Measurements in transverse direction with both electrode configurations.
Schematic measurements in muscle (a) Measurements along longitudinal direction of fiber axis with both electrode configurations (b) Measurements in transverse direction with both electrode configurations.

Figure 3

Isopotential interface factor for (a) adjacent electrode system and (b) axial concentric electrode system. A color bar indicates the magnitude of the isopotential interface factor in both 3D graphs. The isopotential factor was higher in adjacent shape compared with axial concentric tetrapolar electrode system.
Isopotential interface factor for (a) adjacent electrode system and (b) axial concentric electrode system. A color bar indicates the magnitude of the isopotential interface factor in both 3D graphs. The isopotential factor was higher in adjacent shape compared with axial concentric tetrapolar electrode system.

Figure 4

Muscle conductivity calculated with both respective equations. (a) Adjacent electrode, (b) concentric electrode, filled symbols are conductivity with correction by isopotential interface factor (Δ: non adjusted longitudinal conductivity, □: non adjusted transverse conductivity, ▲: longitudinal conductivity with correction, ■: transverse conductivity with correction).
Muscle conductivity calculated with both respective equations. (a) Adjacent electrode, (b) concentric electrode, filled symbols are conductivity with correction by isopotential interface factor (Δ: non adjusted longitudinal conductivity, □: non adjusted transverse conductivity, ▲: longitudinal conductivity with correction, ■: transverse conductivity with correction).

Figure 5

Values of IEA index between 0.1 Hz and 8 MHz. (Δ: anisotropy values obtained with axial concentric electrode shape, □: anisotropy values obtained with adjacent electrode shape).
Values of IEA index between 0.1 Hz and 8 MHz. (Δ: anisotropy values obtained with axial concentric electrode shape, □: anisotropy values obtained with adjacent electrode shape).

Figure 6

IEA angle. (Δ: values obtained with axial concentric electrode shape, □: values obtained with adjacent electrode shape).
IEA angle. (Δ: values obtained with axial concentric electrode shape, □: values obtained with adjacent electrode shape).
DOI: https://doi.org/10.5617/jeb.298 | Journal eISSN: 1891-5469
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Language: English
Page range: 29 - 35
Submitted on: May 29, 2012
Published on: Aug 30, 2012
Published by: University of Oslo
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
Concentric axial electrode,
adjacent electrode,
electrical anisotropy,
electrode polarization impedance,
index IEA
Related subjects:
Engineering,
Bioengineering and biomedical engineering,
Biomedical electronics,
Life sciences,
Biophysics,
Medicine,
Biomedical engineering,
Physics,
Spectroscopy and metrology

© 2012 J. A. Gómez-Sánchez, C. J. Felice, published by University of Oslo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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