Title :
Microcontroller based bioimpedance analyzer
Author :
Solmaz, Hakan ; Ülgen, Yekta ; TÜMER, Murat
Author_Institution :
Biyomedikal Muhendislik Enstitusu, Bogazici Univ., Istanbul
Abstract :
The device presented in this study is a four-probe, multifrequency, portable bioimpedance analyzer based on the magnitude-ratio and phase-difference detection principles. The system is built around a digital sine-wave generator, a voltage controlled current source, a phase-gain detector and a microcontroller unit. The Cole-Cole parameters, namely R0, Rinfin, fc and alpha are also calculated. The accuracy and precision of the device are checked against the HP 4284A LCR meter using different RC test loads.
Keywords :
bioelectric phenomena; biomedical engineering; biomedical equipment; microcontrollers; Cole-Cole parameters; HP 4284A LCR meter; RC test loads; bioimpedance analyzer; magnitude-ratio detection; microcontroller; phase-difference detection; Accuracy; Bioimpedance; Control systems; Microcontrollers; Phase detection; Phase frequency detector; Testing; Voltage control;
Conference_Titel :
Biomedical Engineering Meeting, 2009. BIYOMUT 2009. 14th National
Conference_Location :
Balcova, Izmir
Print_ISBN :
978-1-4244-3605-7
Electronic_ISBN :
978-1-4244-3606-4
DOI :
10.1109/BIYOMUT.2009.5130264