Title :
Electrical behavior of biological materials
Author :
Seitz, Martin A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Marquette Univ., Milwaukee, WI, USA
Abstract :
The lumped-parameter AC equivalent circuit is used as a systematic means of representing the impact of multiple conduction and polarization processes, along with the role of a microstructure, on a biological material´s electrical behavior. Systems are encounted that lead to overlapping semicircular plots, which indicates the presence of multiple polarization events having relaxation times close to one another. In this instance the data analysis becomes more complex. In situations where there exists a continuous distribution of relaxation times, the semicircular plots are found to have their centers depressed below the abscissa. This can be an indication of the interaction of polarizing units or of heterogeneous variations within the system microstructure
Keywords :
bioelectric phenomena; biological materials; conduction; data analysis; electrical behavior; heterogeneous variations; lumped-parameter AC equivalent circuit; polarization; relevant times distribution; semicircular plots; Admittance; Biological materials; Bridge circuits; Conducting materials; Electric variables measurement; Electrodes; Equivalent circuits; Impedance; Optical polarization; Probes;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96174
