Electrical impedance tomography

Electrical Impedance Tomography is an imaging method that requires a stable current source to be able to be able to display a clear and precise image. There are many factors that affect the clarity and precision of the image. This experiment aims to improve the system by allowing it to produce image...

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Main Author: Sim, Gerald Li Wei
Other Authors: Ng Boon Poh
Format: Final Year Project
Language:English
Published: 2018
Subjects:
Online Access:http://hdl.handle.net/10356/74736
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-747362023-07-07T16:59:55Z Electrical impedance tomography Sim, Gerald Li Wei Ng Boon Poh School of Electrical and Electronic Engineering DRNTU::Engineering Electrical Impedance Tomography is an imaging method that requires a stable current source to be able to be able to display a clear and precise image. There are many factors that affect the clarity and precision of the image. This experiment aims to improve the system by allowing it to produce images across a wide range of frequencies so as to be able to clearly detect tissue and other biological parts in a body. A water tank enclosed with probes was used to simulate an enclosed body. Different Op-Amps ranging from the TL071ACP, LM741 and AD844 op-amps were tested to produce a low current of 1mA across the water tank, with water used as the medium. The Enhanced Howland current source was used in this experiment, while the load is simulated with the tank containing water as the medium. The system was able to successfully simulate real-time Electrical Impedance imaging with accurate results and can be used for further research studies of EIT. Bachelor of Engineering 2018-05-23T06:49:30Z 2018-05-23T06:49:30Z 2018 Final Year Project (FYP) http://hdl.handle.net/10356/74736 en Nanyang Technological University 49 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering
spellingShingle DRNTU::Engineering
Sim, Gerald Li Wei
Electrical impedance tomography
description Electrical Impedance Tomography is an imaging method that requires a stable current source to be able to be able to display a clear and precise image. There are many factors that affect the clarity and precision of the image. This experiment aims to improve the system by allowing it to produce images across a wide range of frequencies so as to be able to clearly detect tissue and other biological parts in a body. A water tank enclosed with probes was used to simulate an enclosed body. Different Op-Amps ranging from the TL071ACP, LM741 and AD844 op-amps were tested to produce a low current of 1mA across the water tank, with water used as the medium. The Enhanced Howland current source was used in this experiment, while the load is simulated with the tank containing water as the medium. The system was able to successfully simulate real-time Electrical Impedance imaging with accurate results and can be used for further research studies of EIT.
author2 Ng Boon Poh
author_facet Ng Boon Poh
Sim, Gerald Li Wei
format Final Year Project
author Sim, Gerald Li Wei
author_sort Sim, Gerald Li Wei
title Electrical impedance tomography
title_short Electrical impedance tomography
title_full Electrical impedance tomography
title_fullStr Electrical impedance tomography
title_full_unstemmed Electrical impedance tomography
title_sort electrical impedance tomography
publishDate 2018
url http://hdl.handle.net/10356/74736
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