Title
Electrode location impact on cole-impedance parameters using magnitude-only measurements
Abstract
In this paper the variability of the Cole-impedance parameters, extracted from magnitude-only measurements using a two-electrode setup are examined. Eight electrodes placed around the centre latitudinal line of an apple are used to collect magnitude measurements from 200 Hz to 1 MHz. Parameters are extracted in MATLAB using a non-linear least squares fitting (NLSF) algorithm, with simulations showing less than 0.5% average relative error compared to the experimental data. The variability, based on electrode location, of each parameter and select combinations are calculated and discussed; with R <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> and R <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> showing the highest variability and α the lowest in this setup. The combinations R <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> /R <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> and τ = (R <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> C) <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1/α</sup> show lower variability than R <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sub> , R <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> , and C, making them potentially more attractive for monitoring physiological changes than the the individual parameters.
Year
DOI
Venue
2016
10.1109/MWSCAS.2016.7869945
2016 IEEE 59th International Midwest Symposium on Circuits and Systems (MWSCAS)
Keywords
Field
DocType
electrode location impact,Cole-impedance parameters,magnitude-only measurements,two-electrode setup,MATLAB,nonlinear least squares fitting algorithm,NLSF algorithm,electrode location,frequency 200 Hz to 1 MHz
Least squares,Impedance parameters,Magnitude (mathematics),Electrode location,MATLAB,Computer science,Electrical impedance,Electronic engineering,Approximation error,Electrode
Conference
ISSN
ISBN
Citations 
1548-3746
978-1-5090-0917-6
1
PageRank 
References 
Authors
0.37
0
3
Name
Order
Citations
PageRank
Todd J. Freeborn110914.27
Ahmed S. Elwakil241076.61
Brent Maundy318238.61