Title :
Automatic sensing device of electrical characteristic of living tree
Author :
Yamamoto, Yoshitake ; Harada, Hiroshi ; Yasuhara, Kiyotaka ; Nakamura, Takao
Author_Institution :
Dept. of Electr. & Electron. Eng., Okayama Univ., Japan
Abstract :
The electrical impedance of a living tissue reflects its cell construction and physiological activity. For this purpose was developed automatic sensing device of electrical tissue characteristic. The system is composed of a part measuring impedance at multi-frequency points and a part analyzing parameters of dispersion system of bio-electrical impedance. Electrical impedances are measured at eight frequency points between 1 kHz to 500 kHz. The parameters for Cole-Cole arc´s law are determined automatically by personal computer program. If the cell constant dependent electrode size and electrode form are given, resistivity and dielectric constant can be calculated
Keywords :
bioelectric phenomena; biological techniques and instruments; cellular biophysics; computerised instrumentation; electric impedance measurement; electric sensing devices; microcomputer applications; 1 to 500 kHz; Cole-Cole arc´s law; automatic sensing device; bioelectrical impedance; cell construction; dielectric constant; dispersion system; electrical characteristic; electrical impedance; equivalent circuit; living tissue; living tree; multifrequency points; personal computer; physiological activity; resistivity; Bioelectric phenomena; Conductivity; Dielectric measurements; Dispersion; Electric variables; Electric variables measurement; Electrodes; Frequency measurement; Impedance measurement; Microcomputers;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1994. IMTC/94. Conference Proceedings. 10th Anniversary. Advanced Technologies in I & M., 1994 IEEE
Conference_Location :
Hamamatsu
Print_ISBN :
0-7803-1880-3
DOI :
10.1109/IMTC.1994.351948
