Measurement strategy for rectangular electrical capacitance tomography sensor

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

To investigate the influence of the measurement strategy for the rectangular electrical capacitance tomography (ECT) sensor, a Finite Element Method (FEM) is utilized to create the model for simulation. The simulation was carried out using COMSOL Multiphysics™ and Matlab™. The length-width ratio of the rectangular sensing area is 5. Twelve electrodes are evenly arranged surrounding the pipe. The covering ratio of the electrodes is 90%. The capacitances between different electrode pairs are calculated for a bar distribution. The air of the relative permittivity 1.0 and the material of the permittivity 3.0 are used for the calibration. The relative permittivity of the second phase is 3.0. The noise free and noise data are used for the image reconstruction using the Linear Back Projection (LBP). The measurement strategies with 1-, 2- and 4- electrode excitation are compared using the correlation coefficient. Preliminary results show that the measurement strategy with 2-electrode excitation outperforms other measurement strategies with 1- or 4-electrode excitation.

Original languageEnglish
Title of host publication8th International Symposium on Measurement Techniques for Multiphase Flows, ISMTMF 2013
PublisherAmerican Institute of Physics Inc.
Pages37-42
Number of pages6
ISBN (Print)9780735412262
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event8th International Symposium on Measurement Techniques for Multiphase Flows, ISMTMF 2013 - Guangzhou, China
Duration: 13 Dec 201315 Dec 2013

Publication series

NameAIP Conference Proceedings
Volume1592
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference8th International Symposium on Measurement Techniques for Multiphase Flows, ISMTMF 2013
Country/TerritoryChina
CityGuangzhou
Period13/12/1315/12/13

Keywords

  • Electrical capacitance tomography
  • measurement strategy
  • rectangular sensor
  • simulation

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