Title :
Microcontroller controlled, multifrequency electrical impedance tomograph
Author :
Arpinar, V.E. ; Eyuboglu, B.M.
Author_Institution :
Electr. & Electron. Eng., Middle East Tech. Univ., Ankara, Turkey
Abstract :
Development of a microcontroller controlled multifrequency electrical impedance tomography system is considered. In this system, current injection and voltage measurements are both performed by the surface electrodes, which are microcontroller controlled. The data acquisition system processes the measured signal using a continuous time quadrature demodulator. After that, it converts analog information to digital and transfers it to the PC.
Keywords :
analogue-digital conversion; biomedical electrodes; biomedical electronics; demodulators; electric impedance imaging; medical control systems; medical signal processing; microcontrollers; PC; analog information; continuous time quadrature demodulator; current injection; data acquisition system; digital information; microcontroller controlled multifrequency electrical impedance tomograph; surface electrodes; voltage measurements; Control systems; Data acquisition; Electrodes; Microcontrollers; Performance evaluation; Surface impedance; Time measurement; Tomography; Voltage control; Voltage measurement;
Conference_Titel :
Engineering in Medicine and Biology Society, 2001. Proceedings of the 23rd Annual International Conference of the IEEE
Print_ISBN :
0-7803-7211-5
DOI :
10.1109/IEMBS.2001.1017232
