Title :
A Generalization of the Geselowitz Relationship Useful in Impedance Plethysmographic Field Calculations
Author :
Mortarelli, John R.
Author_Institution :
Biomedical Engineering Program, Worcester Polytechnic Institute
Abstract :
The Geselowitz relationship, valid only for volumes of fixed geometry and static or quasi-static sources, is extended to volumes of fluctuating geometry and nonquasi-static sinusoidal sources. The special case of filamentous sinusoidal sources is considered and the Geselowitz relationship is regained for the case of a fixed volume conductor in a quasi-static or static field.
Keywords :
Conductivity; Conductors; Current density; Electrodes; Electromagnetic fields; Fluctuations; Frequency; Geometry; Sampling methods; Surface impedance; Electromagnetic Fields; Electromagnetics; Mathematics; Plethysmography, Impedance;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1980.326677
