Title :
Wearable impedance analyzer based on AD5933
Author :
Breniuc, Liviu ; David, Valeriu ; Haba, Cristian-Gyozo
Author_Institution :
Fac. of Electr. Eng., Dept. of Electr. Meas. & Electrotech. Mater., Tech. Univ, of Iasi, Iasi, Romania
Abstract :
In this paper a system for measuring impedance, based on AD5933 circuit is presented. The impedance measuring range is between 9 Ω and 18 MΩ for a 1 kHz ÷ 100 kHz frequency range. Possibilities of expanding this range of measurement are also presented in the paper. The system calibration is automatic and the relative error of the impedance modulus measurement is in the range ±2%. Measured impedance main parameters are shown locally on an OLED display but can also be stored in an SD memory card for further processing. The system is portable, modular and adaptable to a large number of applications.
Keywords :
calibration; electric impedance measurement; impedance convertors; portable instruments; AD5933 circuit; OLED display; SD memory card; impedance modulus measurement; portable system; system calibration; wearable impedance analyzer; Calibration; Current measurement; Electrical resistance measurement; Frequency measurement; Impedance; Impedance measurement; Oscillators; AD5933; impedance analyzer; medical applications; microcontroller;
Conference_Titel :
Electrical and Power Engineering (EPE), 2014 International Conference and Exposition on
Conference_Location :
Iasi
DOI :
10.1109/ICEPE.2014.6969977
