Universiti Teknologi Malaysia Institutional Repository

Front-end design for non-invasive electrical resistance tomography for liquid column

Abdul Wahab, Yasmin and Abdul Rahim, Ruzairi and Zawawi, Mohd. Anwar and Rahiman, Mohd. Hafiz Fazalul and Leow, Pei Ling and Jamaluddin, Juliza and Goh, Helen and Ridzuan Aw, Suzanna and Abdul Rahim, Herlina (2018) Front-end design for non-invasive electrical resistance tomography for liquid column. Journal of Telecommunication, Electronic and Computer Engineering, 10 (1-2). pp. 55-60. ISSN 2180-1843

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Official URL: https://journal.utem.edu.my/index.php/jtec/article...


This paper explains the front-end design for noninvasive electrical resistance tomography. The electrical resistance tomography system presented in this paper uses high-frequency potential. In this design, the phase-shift demodulation (PSD) approach was eliminated and replaced by a peak detector circuit. The switching between transmitter/receiver and the transmitting channel was controlled by an analogue switch, MAX319 and demultiplexer, DG406, respectively. A microcontroller was applied to the data acquisition which eliminates the needs of a data acquisition system. Sensor readings of each receiver from each transmitter groups were tested experimentally, compared and analysed with simulation results. These experimental readings were compared with the sensors reading simulated from COMSOL Multiphysics software. As a result, the current values between 0-1mA from experiments was similar with the simulation results for all groups of transmitters. Thus, it can be concluded that the front-end design can be applied for the non-invasive ERT when high frequency is considered.

Item Type:Article
Uncontrolled Keywords:ERT, High Frequency
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:85757
Deposited By: Widya Wahid
Deposited On:28 Jul 2020 10:45
Last Modified:28 Jul 2020 10:45

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