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Front-end circuit in electrical resistance tomography (ERT) for two-phase liquid and gas imaging

A steady and precise Voltage Control Current Source (VCCS ) with broad bandwidth plays a very important role in the quality of final images for the Electrical Resistance Tomography (ERT) system. Therefore, a model of current source is proposed in the paper which implement advanced Howland current pu...

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Main Authors: Mohd. Yunus, Fazlul Rahman, Abdul Rahim, Ruzairi, Ridzuan Aw, Suzanna, Nor Ayob, N. M., Jayasuman, M. P., Jumaah, M. F.
Format: Article
Language:English
Published: Penerbit UTM 2014
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.utm.my/id/eprint/52937/1/RuzairiAbdulRahim2014_Front-EndCircuitinElectricalResistanceTomography.pdf
http://eprints.utm.my/id/eprint/52937/
http://dx.doi.org/10.11113/jt.v70.3462
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spelling my.utm.529372018-07-19T07:22:19Z http://eprints.utm.my/id/eprint/52937/ Front-end circuit in electrical resistance tomography (ERT) for two-phase liquid and gas imaging Mohd. Yunus, Fazlul Rahman Abdul Rahim, Ruzairi Ridzuan Aw, Suzanna Nor Ayob, N. M. Jayasuman, M. P. Jumaah, M. F. TK Electrical engineering. Electronics Nuclear engineering A steady and precise Voltage Control Current Source (VCCS ) with broad bandwidth plays a very important role in the quality of final images for the Electrical Resistance Tomography (ERT) system. Therefore, a model of current source is proposed in the paper which implement advanced Howland current pump as VCCS. The model are simulated through a software named multisim, and the simulation results show the proposed high-speed operational amplifier (op-amp) LM7171 is capable to produce constant output current at 10 mA (peak) when the frequency changes between 1 kHz to 500 kHz with load varies from 10 Ω to 1 kΩ. A two-dimensional (2D) simulation was performed using COMSOL and the results showed that the model is capable to detect air bubble (radius=10 mm) in a two-phase liquid and gas. The result presented with opposite excitation method with 150 kHz current at 10 mA. The measurement of boundary potentials are significantly influenced by bubble positions particularly towards the boundary. They are hoped to provide useful approaches for the design of practical and low-cost VCCS in ERT system. Penerbit UTM 2014 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/52937/1/RuzairiAbdulRahim2014_Front-EndCircuitinElectricalResistanceTomography.pdf Mohd. Yunus, Fazlul Rahman and Abdul Rahim, Ruzairi and Ridzuan Aw, Suzanna and Nor Ayob, N. M. and Jayasuman, M. P. and Jumaah, M. F. (2014) Front-end circuit in electrical resistance tomography (ERT) for two-phase liquid and gas imaging. Jurnal Teknologi (3). pp. 49-55. ISSN 0127-9696 http://dx.doi.org/10.11113/jt.v70.3462 DOI: 10.11113/jt.v70.3462
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Mohd. Yunus, Fazlul Rahman
Abdul Rahim, Ruzairi
Ridzuan Aw, Suzanna
Nor Ayob, N. M.
Jayasuman, M. P.
Jumaah, M. F.
Front-end circuit in electrical resistance tomography (ERT) for two-phase liquid and gas imaging
description A steady and precise Voltage Control Current Source (VCCS ) with broad bandwidth plays a very important role in the quality of final images for the Electrical Resistance Tomography (ERT) system. Therefore, a model of current source is proposed in the paper which implement advanced Howland current pump as VCCS. The model are simulated through a software named multisim, and the simulation results show the proposed high-speed operational amplifier (op-amp) LM7171 is capable to produce constant output current at 10 mA (peak) when the frequency changes between 1 kHz to 500 kHz with load varies from 10 Ω to 1 kΩ. A two-dimensional (2D) simulation was performed using COMSOL and the results showed that the model is capable to detect air bubble (radius=10 mm) in a two-phase liquid and gas. The result presented with opposite excitation method with 150 kHz current at 10 mA. The measurement of boundary potentials are significantly influenced by bubble positions particularly towards the boundary. They are hoped to provide useful approaches for the design of practical and low-cost VCCS in ERT system.
format Article
author Mohd. Yunus, Fazlul Rahman
Abdul Rahim, Ruzairi
Ridzuan Aw, Suzanna
Nor Ayob, N. M.
Jayasuman, M. P.
Jumaah, M. F.
author_facet Mohd. Yunus, Fazlul Rahman
Abdul Rahim, Ruzairi
Ridzuan Aw, Suzanna
Nor Ayob, N. M.
Jayasuman, M. P.
Jumaah, M. F.
author_sort Mohd. Yunus, Fazlul Rahman
title Front-end circuit in electrical resistance tomography (ERT) for two-phase liquid and gas imaging
title_short Front-end circuit in electrical resistance tomography (ERT) for two-phase liquid and gas imaging
title_full Front-end circuit in electrical resistance tomography (ERT) for two-phase liquid and gas imaging
title_fullStr Front-end circuit in electrical resistance tomography (ERT) for two-phase liquid and gas imaging
title_full_unstemmed Front-end circuit in electrical resistance tomography (ERT) for two-phase liquid and gas imaging
title_sort front-end circuit in electrical resistance tomography (ert) for two-phase liquid and gas imaging
publisher Penerbit UTM
publishDate 2014
url http://eprints.utm.my/id/eprint/52937/1/RuzairiAbdulRahim2014_Front-EndCircuitinElectricalResistanceTomography.pdf
http://eprints.utm.my/id/eprint/52937/
http://dx.doi.org/10.11113/jt.v70.3462
_version_ 1643653286249627648
score 13.211869

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