Title :
The detection of the onset of electrode-electrolyte interface impedance nonlinearity: A theoretical study
Author :
McAdams, E.T. ; Jossinet, J.
Author_Institution :
The Northern Ireland Bio-Eng. Centre, Ulster Univ., Jordanstown, UK
fDate :
5/1/1994 12:00:00 AM
Abstract :
The equivalent series resistance and reactance of the electrode-electrolyte interface impedance have both been used to detect the onset of signal amplitude induced nonlinearity. Using a theoretical model, it is shown that the choice of the most sensitive indicator depends on the phase angle of the "polarization" impedance and on the applied frequency.
Keywords :
bioelectric phenomena; biomedical equipment; electric impedance; electrolytes; interface phenomena; applied frequency; bioelectrode systems; electrode-electrolyte interface impedance nonlinearity onset detection; equivalent series resistance; medical electrodes; phase angle; polarization impedance; reactance; signal amplitude induced nonlinearity; theoretical model; Angular velocity; Capacitance; Current density; Frequency dependence; Immune system; Linearity; Rough surfaces; Surface impedance; Surface resistance; Surface roughness; Electric Impedance; Electrodes; Electrolytes; Models, Theoretical;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
