Title :
Development of a portable electrical capacitance tomography system
Author :
Tang, Shuo ; Liang, Yung C. ; Tien, David ; Wang, Chi-Hwa
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
Industrial process tomography is a non-invasive visualisation technique to obtain cross-sectional images of dynamic industrial processes. Electrical capacitance tomography (ECT) is the first developed and the most mature tomographic imaging technique used for industrial applications. Comparing with other tomographic techniques, it is relatively cheap, fast and safe. This paper describes the process of developing a portable ECT system in terms of sensor design, capacitance measuring circuit design, capacitance calibration and image reconstruction. Different image reconstruction algorithms were verified and compared.
Keywords :
calibration; capacitance measurement; electric impedance imaging; image reconstruction; portable instruments; capacitance calibration; capacitance measuring circuit design; electrical capacitance tomography; image reconstruction; industrial process tomography; non-invasive visualisation technique; portable ECT system; tomographic imaging technique; Capacitance; Capacitance measurement; Electrodes; Image reconstruction; Materials; Permittivity; Sensitivity;
Conference_Titel :
IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-61284-969-0
DOI :
10.1109/IECON.2011.6119726
