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On sensitivity in transfer impedance measurements Cover

On sensitivity in transfer impedance measurements

Journal of Electrical Bioimpedance
Volume 9 (2018): Issue 1 (January 2018)
By: Fred J. Pettersen  
Open Access
|Dec 2018

Figures & Tables

Fig.1

Current density vector plots for the three models, starting with model A at the top followed by model B and C. The red vectors are CC current densities and the blue vectors are reciprocal current densities.
Current density vector plots for the three models, starting with model A at the top followed by model B and C. The red vectors are CC current densities and the blue vectors are reciprocal current densities.

Fig.2

Sensitivity field plots for the three models, starting with model A at the top followed by model B and C. The red regions represent positive sensitivity while the blue regions represent negative sensitivity. The absolute value is higher the stronger the color is.
Sensitivity field plots for the three models, starting with model A at the top followed by model B and C. The red regions represent positive sensitivity while the blue regions represent negative sensitivity. The absolute value is higher the stronger the color is.

Fig.3

Volume impedance density field plots for the three models, starting with model A at the top followed by model B and C. The red regions represent positive volume impedance density while the blue regions represent negative volume impedance density. The absolute value is higher the stronger the color is.
Volume impedance density field plots for the three models, starting with model A at the top followed by model B and C. The red regions represent positive volume impedance density while the blue regions represent negative volume impedance density. The absolute value is higher the stronger the color is.

Electrical properties of the materials used in FEM simulations_

MaterialConductivity (S/m)Resistivity (Ωm)
lowConductivity0.110
mediumConductivity11
highConductivity100.1

Simulated impedances and associated perceptivities for the three models_ Units for perceptivities are left out since we are considering change in phenomena which can be non-physical changes_

ParameterModel AModel BModel C
Sim. 112.645 Ω12.645 Ω10.985 Ω
Sim. 211.736 Ω11.736 Ω10.076 Ω
Sim. 313.545 Ω13.545 Ω11.885 Ω
Sim. 412.545 Ω12.545 Ω10.885 Ω
Ψm-3.636-3.636-3.636
Ψg3.6003.6003.600
Ψ-0.400-0.400-0.400
Ψrm-0.288-0.288-0.331
Ψrg0.2660.2660.303
Ψr-0.032-0.032-0.036
DOI: https://doi.org/10.2478/joeb-2018-0020 | Journal eISSN: 1891-5469
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Language: English
Page range: 159 - 162
Submitted on: Dec 15, 2018
Published on: Dec 31, 2018
Published by: University of Oslo
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
Bioimpedance,
perceptivity,
sensitivity
Related subjects:
Engineering,
Bioengineering and biomedical engineering,
Biomedical electronics,
Life sciences,
Biophysics,
Medicine,
Biomedical engineering,
Physics,
Spectroscopy and metrology

© 2018 Fred J. Pettersen, published by University of Oslo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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