Title :
Multifrequency impedance plethysmograph
Author :
Wtorek, Jerzy ; Polinski, Artur
Author_Institution :
Dept. of Med. & Ecol. Electron., Tech. Univ. Gdansk, Poland
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;
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
DOI :
10.1109/IMTC.1996.507611
