Design of a cole-cole meter for complex impedance measurement of living tissues

H. Solmaz, Y. Ülgen, M. Tümer

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Measurement of complex impedance of biological systems is gaining wide popularity in determining the pathological and physiological status of tissues in research areas such as; body fat content, blood freshness, tissue ischemia, skin hydration, and etc. In this paper, we designed a four-probe, multi-frequency impedance meter for quick assessment of the viability of erythrocyte suspensions under storage conditions. Impedance measurements are based on magnitude-ratio and phase-difference detection principles. The system is built around a sine-wave generator, a voltage controlled current source, a phase-gain detector and a microcontroller unit. Device accuracy is checked against the HP 4284A LCR meter under different RC test loads that simulate physiological measurements. As a novelty, Cole-Cole parameters namely R 0, R, fc, α and the extracellular fluid and intracellular fluid resistances, Re and Ri are directly displayed in the same device, for the ease of use.

Original languageEnglish
Title of host publicationProceedings of the 7th IASTED International Conference on Biomedical Engineering, BioMED 2010
Pages208-211
Number of pages4
Publication statusPublished - 2010
Externally publishedYes
Event7th IASTED International Conference on Biomedical Engineering, BioMED 2010 - Innsbruck, Austria
Duration: 17 Feb 201019 Feb 2010

Publication series

NameProceedings of the 7th IASTED International Conference on Biomedical Engineering, BioMED 2010
Volume1

Conference

Conference7th IASTED International Conference on Biomedical Engineering, BioMED 2010
Country/TerritoryAustria
CityInnsbruck
Period17/02/1019/02/10

Keywords

  • Bioimpedance
  • Cole-cole parameters
  • Magnitude-ratio and phase-difference detection

Fingerprint

Dive into the research topics of 'Design of a cole-cole meter for complex impedance measurement of living tissues'. Together they form a unique fingerprint.

Cite this