Evaluating object and region of concentric electrode in bio-electrical impedance measurement

Author

Yamamoto, Yoshitake ; Shirai, Kiyoko ; Goda, Noriko ; Nakamura, Takao ; Kusuhara, Toshimasa ; Okuda, Hiroyuki

Author_Institution

Fac. of Health Sci., Okayama Univ., Japan

fYear

2003

fDate

20-22 Oct. 2003

Firstpage

282

Lastpage

283

Abstract

Concentric electrode is easy to use and used widely for measuring bio-electrical impedance. But, its evaluating region was not investigated in detail. Then, the characteristics of concentric electrode were studied from various points of view. In case of use without electrode paste, impedance is determined with the contacting condition between electrode and skin surface over all frequency range. In case of use with electrode past, impedance is composed of stratum corneum in the frequency range of 20 Hz-1 kHz and is mainly composed of subcutaneous tissue in the range of 200 kHz-1 MHz. In the high frequency range, evaluating region of concentric electrode is the area less than the radius or the gap of center electrode.

Keywords

bioelectric phenomena; biological tissues; biomedical electrodes; biomedical measurement; electric impedance measurement; 20 Hz to 1 kHz; 200 kHz to 1 MHz; bioelectrical impedance measurement; bioimpedance; concentric electrode; skin surface; stratum corneum; subcutaneous tissue; Admittance measurement; Bioelectric phenomena; Biomedical electrodes; Building materials; Capacitance; Concrete; Frequency measurement; Impedance measurement; Skin; Tail;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Engineering, 2003. IEEE EMBS Asian-Pacific Conference on

Print_ISBN

0-7803-7943-8

Type

conf

DOI

10.1109/APBME.2003.1302694

Filename

1302694