Microcontroller controlled, multifrequency electrical impedance tomograph

Author

Arpinar, V.E. ; Eyuboglu, B.M.

Author_Institution

Electr. & Electron. Eng., Middle East Tech. Univ., Ankara, Turkey

Volume

3

fYear

2001

fDate

2001

Firstpage

2289

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2001. Proceedings of the 23rd Annual International Conference of the IEEE

ISSN

1094-687X

Print_ISBN

0-7803-7211-5

Type

conf

DOI

10.1109/IEMBS.2001.1017232

Filename

1017232