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Use of the loss‐tangent function in dielectric spectroscopy
Author(s) -
Surowiec Andrzej,
Stuchly Stanislaw S.
Publication year - 1986
Publication title -
bioelectromagnetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.435
H-Index - 81
eISSN - 1521-186X
pISSN - 0197-8462
DOI - 10.1002/bem.2250070303
Subject(s) - dissipation factor , dielectric , relaxation (psychology) , dielectric loss , tangent , dispersion (optics) , function (biology) , crystal (programming language) , nuclear magnetic resonance , physics , materials science , condensed matter physics , chemistry , molecular physics , mathematics , optics , quantum mechanics , computer science , medicine , biology , geometry , evolutionary biology , programming language
A new method for finding the dielectric parameters of biological substances is presented. The method makes use of the loss‐tangent as a function of frequency to identify the dominating relaxation process. The method was tested for a few cell suspensions (blood and lymphocytes) and two tissues (liver and spleen). The obtained parameters agree well with those calculated from Maxwell‐Wagner theory (β dispersion).