Multifrequency impedance plethysmograph

Author

Wtorek, Jerzy ; Polinski, Artur

Author_Institution

Dept. of Med. & Ecol. Electron., Tech. Univ. Gdansk, Poland

Volume

2

fYear

1996

fDate

1996

Firstpage

1452

Abstract

The multifrequency impedance plethysmograph is achieved by sequentially changing the drive current and measuring the resultant voltages at each frequency. The change in frequency is made so fast that physiological events are considered steady. The measured voltage is demodulated digitally

Keywords

bioelectric phenomena; biomedical electronics; biomedical equipment; computerised instrumentation; demodulation; demodulators; electric impedance measurement; medical signal processing; signal detection; DSP processor; bioimpedance signals; current generator; digitally demodulated; frequency change; host processor control; multifrequency impedance plethysmograph; qualitative measurement; sequentially changed drive current; steady physiological events; thoracic impedance; tissue properties; Biomedical imaging; Blood flow; Conductivity; Electrodes; Fluid flow measurement; Frequency measurement; Impedance measurement; Permittivity measurement; Pulse measurements; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1996. IMTC-96. Conference Proceedings. Quality Measurements: The Indispensable Bridge between Theory and Reality., IEEE

Conference_Location

Brussels

Print_ISBN

0-7803-3312-8

Type

conf

DOI

10.1109/IMTC.1996.507611

Filename

507611