NDLI: Bioimpedance Measurement: Modeling of Coplanar Electrodes and Impedance Characterization

Content Provider	IEEE Xplore Digital Library
Author	Gang Yang Haiyan Long Hua Tian Shiqiang Luo Hua Huang
Copyright Year	2008
Description	Author affiliation: Med. Inf. Eng. Dept., Sichuan Univ., Chengdu (Gang Yang)
Abstract	In many bioimpedance measurements, coplanar electrodes have to be used because the conventional parallel-plate configuration is either impossible or not preferred. Despite the widely use, the effect of the electrode geometry on the measurement, and the physical process of electrode-electrolyte interface impedance have not been well studied. In this work, we designed a type of fingers-like coplanar electrode and described the impedane measurement method for different test objects, which included various biologically relevant solution, blood and excised tissue. For best understanding interface characteristics of those objects, we adopted electrochemical impedance models to analyze the physical processes, and compared the electrical properties of these objects by amptitude-frequency plots in the frequency range of 100 Hz to 10 MHz. The results show that the impedance measurement method is effective, and fingers-like coplanar electrode can be used for bioimpedance measurement.
Starting Page	1248
Ending Page	1251
File Size	226701
Page Count	4
File Format	PDF
ISBN	9781424417476
DOI	10.1109/ICBBE.2008.640
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Geometry Polarization Design engineering Impedance measurement Bioimpedance Biomedical measurements Circuit testing Blood Biomedical electrodes Biomedical engineering
Content Type	Text
Resource Type	Article

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