An introduction of two differential excitation potentials technique in electrical capacitance tomography

The investigation of this work is to analyse the sensitivity distributions using single and two differential excitation potentials techniques in order to improve the situation of: (1) non-uniform sensitivity distri- bution; (2) less sensitivity in the central area, and (3) non-linear change in the E...

Full description

Bibliographic Details
Main Authors: Mohamad, Elmy Johana, Abdul Rahim, Ruzairi, Leow, Pei Ling, Rahiman, Mohd Hafiz Fazalul, Marwah, Omar Mohd Faizan, Nor Ayob, Nor Muzakkir, Rahim, Herlina Abdul, Mohd Yunus, F.R.
Format: Article
Language:English
Published: Elsevier 2012
Subjects:
Online Access:http://eprints.uthm.edu.my/5613/1/AJ%202017%20%28851%29.pdf
_version_ 1825710050795061248
author Mohamad, Elmy Johana
Abdul Rahim, Ruzairi
Leow, Pei Ling
Rahiman, Mohd Hafiz Fazalul
Marwah, Omar Mohd Faizan
Nor Ayob, Nor Muzakkir
Rahim, Herlina Abdul
Mohd Yunus, F.R.
author_facet Mohamad, Elmy Johana
Abdul Rahim, Ruzairi
Leow, Pei Ling
Rahiman, Mohd Hafiz Fazalul
Marwah, Omar Mohd Faizan
Nor Ayob, Nor Muzakkir
Rahim, Herlina Abdul
Mohd Yunus, F.R.
author_sort Mohamad, Elmy Johana
collection UTHM
description The investigation of this work is to analyse the sensitivity distributions using single and two differential excitation potentials techniques in order to improve the situation of: (1) non-uniform sensitivity distri- bution; (2) less sensitivity in the central area, and (3) non-linear change in the ECT (electrical capacitance tomography) system. Forward modelling using COMSOL Multiphysics is developed in order to obtain an algorithm to quantify the image reconstruction. The forward model developed is to simulate the changes in capacitance between opposing electrodes and the permittivity of the dielectric material due to the increasing of the diameter of a higher permittivity insert when two differential excitation potentials were injected. The MATLAB simulation is used to obtain the sensitivity distribution inside the closed pipe from the sensor. By using the MATLAB software, the forward model conditions are placed on the image plane to estimate the results. Generated phantoms and measured values are presented. Simulation is verified using available experimental data through the existing system, sixteen-segmented ECT sensor electrodes. By using this technique, the linear relationship between the capacitances measured and the permittivity dramatically improved, and the sensitivity distribution for an opposing electrode pair was increased; thus giving a slight increase in the sensitivity distribution in a central area. Simulation and initial experimental results illustrate the capability of the technique presented.
first_indexed 2024-03-05T21:51:44Z
format Article
id uthm.eprints-5613
institution Universiti Tun Hussein Onn Malaysia
language English
last_indexed 2024-03-05T21:51:44Z
publishDate 2012
publisher Elsevier
record_format dspace
spelling uthm.eprints-56132022-01-17T02:18:04Z http://eprints.uthm.edu.my/5613/ An introduction of two differential excitation potentials technique in electrical capacitance tomography Mohamad, Elmy Johana Abdul Rahim, Ruzairi Leow, Pei Ling Rahiman, Mohd Hafiz Fazalul Marwah, Omar Mohd Faizan Nor Ayob, Nor Muzakkir Rahim, Herlina Abdul Mohd Yunus, F.R. TK7800-8360 Electronics The investigation of this work is to analyse the sensitivity distributions using single and two differential excitation potentials techniques in order to improve the situation of: (1) non-uniform sensitivity distri- bution; (2) less sensitivity in the central area, and (3) non-linear change in the ECT (electrical capacitance tomography) system. Forward modelling using COMSOL Multiphysics is developed in order to obtain an algorithm to quantify the image reconstruction. The forward model developed is to simulate the changes in capacitance between opposing electrodes and the permittivity of the dielectric material due to the increasing of the diameter of a higher permittivity insert when two differential excitation potentials were injected. The MATLAB simulation is used to obtain the sensitivity distribution inside the closed pipe from the sensor. By using the MATLAB software, the forward model conditions are placed on the image plane to estimate the results. Generated phantoms and measured values are presented. Simulation is verified using available experimental data through the existing system, sixteen-segmented ECT sensor electrodes. By using this technique, the linear relationship between the capacitances measured and the permittivity dramatically improved, and the sensitivity distribution for an opposing electrode pair was increased; thus giving a slight increase in the sensitivity distribution in a central area. Simulation and initial experimental results illustrate the capability of the technique presented. Elsevier 2012 Article PeerReviewed text en http://eprints.uthm.edu.my/5613/1/AJ%202017%20%28851%29.pdf Mohamad, Elmy Johana and Abdul Rahim, Ruzairi and Leow, Pei Ling and Rahiman, Mohd Hafiz Fazalul and Marwah, Omar Mohd Faizan and Nor Ayob, Nor Muzakkir and Rahim, Herlina Abdul and Mohd Yunus, F.R. (2012) An introduction of two differential excitation potentials technique in electrical capacitance tomography. Sensors and Actuators A: Physical, 180 (NIL). pp. 1-10. ISSN 0924-4247 https://dx.doi.org/10.1016/j.sna.2012.03.025
spellingShingle TK7800-8360 Electronics
Mohamad, Elmy Johana
Abdul Rahim, Ruzairi
Leow, Pei Ling
Rahiman, Mohd Hafiz Fazalul
Marwah, Omar Mohd Faizan
Nor Ayob, Nor Muzakkir
Rahim, Herlina Abdul
Mohd Yunus, F.R.
An introduction of two differential excitation potentials technique in electrical capacitance tomography
title An introduction of two differential excitation potentials technique in electrical capacitance tomography
title_full An introduction of two differential excitation potentials technique in electrical capacitance tomography
title_fullStr An introduction of two differential excitation potentials technique in electrical capacitance tomography
title_full_unstemmed An introduction of two differential excitation potentials technique in electrical capacitance tomography
title_short An introduction of two differential excitation potentials technique in electrical capacitance tomography
title_sort introduction of two differential excitation potentials technique in electrical capacitance tomography
topic TK7800-8360 Electronics
url http://eprints.uthm.edu.my/5613/1/AJ%202017%20%28851%29.pdf
work_keys_str_mv AT mohamadelmyjohana anintroductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography
AT abdulrahimruzairi anintroductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography
AT leowpeiling anintroductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography
AT rahimanmohdhafizfazalul anintroductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography
AT marwahomarmohdfaizan anintroductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography
AT norayobnormuzakkir anintroductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography
AT rahimherlinaabdul anintroductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography
AT mohdyunusfr anintroductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography
AT mohamadelmyjohana introductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography
AT abdulrahimruzairi introductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography
AT leowpeiling introductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography
AT rahimanmohdhafizfazalul introductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography
AT marwahomarmohdfaizan introductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography
AT norayobnormuzakkir introductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography
AT rahimherlinaabdul introductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography
AT mohdyunusfr introductionoftwodifferentialexcitationpotentialstechniqueinelectricalcapacitancetomography