Non-linearity of the skin´s AC impedance

Author

Lackermeier, A. ; Pirke, A. ; McAdams, E.T. ; Jossinet, J.

Author_Institution

NIBEC, Ulster Univ., Jordanstown, UK

Volume

5

fYear

1996

fDate

31 Oct-3 Nov 1996

Firstpage

1945

Abstract

The nonlinearity of the skin´s AC impedance is a complex and fascinating problem. A custom-built, multichannel, in vivo impedance monitoring system was used to study and compare the skin´s nonlinear behaviour under differing current amplitude conditions. Due to the complexity of the problem, care must be taken when planning such experiments. It was found that the source of the observed nonlinearity is the skin´s parallel resistance. This resistance is nonlinear, even at low current densities of the order of 2 μA/cm²

Keywords

bioelectric phenomena; biomedical measurement; current density; electric impedance measurement; skin; current amplitude conditions; custom-built multichannel in vivo impedance monitoring system; experiments planning; nonlinear resistance; parallel resistance; skin AC impedance nonlinearity; Biomedical electrodes; Condition monitoring; Current density; Electric resistance; Electrical resistance measurement; Immune system; Impedance measurement; In vivo; Sequences; Skin;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE

Conference_Location

Amsterdam

Print_ISBN

0-7803-3811-1

Type

conf

DOI

10.1109/IEMBS.1996.646332

Filename

646332