Wang, M, Wang, Q and Karki, B (2016) Arts of electrical impedance tomographic sensing. Philosophical transactions of the Royal Society of London. Series A: Mathematical and physical sciences, 374 (2070). ISSN 0080-4614
Abstract
This paper reviews governing theorems in electrical impedance sensing for analysing the relationships of boundary voltages obtained from different sensing strategies. It reports that both the boundary voltage values and the associated sensitivity matrix of an alternative sensing strategy can be derived from a set of full independent measurements and sensitivity matrix obtained from other sensing strategy. A new sensing method for regional imaging with limited measurements is reported. It also proves that the sensitivity coefficient back-projection algorithm does not always work for all sensing strategies unless the diagonal elements of the transformed matrix, ATA, have significant values and can be approximate to a diagonal matrix. Imaging capabilities of few sensing strategies were verified with static set-ups, which suggest the adjacent electrode pair sensing strategy displays better performance compared to the diametrically opposite protocol, with both the back-projection and multi-step image reconstruction methods. An application of electrical impedance tomography for sensing gas in water two phase flows is demonstrated.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
Keywords: | electrical impedance tomography, sensitivity, resolution matrix, regional imaging with limited measurements |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) > Institute for Particle Science and Engineering (Leeds) |
Funding Information: | Funder Grant number EPSRC EP/K503836/1 EURAMET EMRP-MSU ENG58-REG2 EPSRC EP/H023054/1 EURAMET EMRP-MSU ENG58-REG3 EPSRC EP/K503836/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 25 May 2016 12:02 |
Last Modified: | 11 Apr 2018 12:28 |
Published Version: | http://dx.doi.org/%2010.1098/rsta.2015.0329 |
Status: | Published |
Publisher: | The Royal Society |
Identification Number: | 10.1098/rsta.2015.0329 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:99360 |