2D MODELLING OF A SENSOR FOR ELECTRICAL CAPACITANCE TOMOGRAPHY IN ECTSIM TOOLBOX
Jacek Kryszyn
j.kryszyn@ire.pw.edu.plWarsaw University of Technology, Faculty of Electronics and Information Technology, The Institute of Radioelectronics and Multimedia Technology, Nuclear and Medical Electronics Division (Poland)
Waldemar Smolik
Warsaw University of Technology, Faculty of Electronics and Information Technology, The Institute of Radioelectronics and Multimedia Technology, Nuclear and Medical Electronics Division (Poland)
Abstract
Electrical capacitance tomography is used to visualize a spatial distribution of dielectrical permittivity of materials placed in a tomographic sensor. An image is reconstructed from measurements of mutual capacitances of electrodes placed around the examined volume. This technique is characterized by very high temporal resolution – it is possible to achieve even few thousands of images per second. One of drawbacks of the method is low spatial resolution. Electrical capacitance tomography is mainly used in industry, e.g. for multiphase flow visualization. One of important elements of a tomographic system is a sensor which parameters influence quality of measurements and therefore affects quality of reconstructed images. In the Division of Nuclear and Medical Electronics a Matlab toolbox called ECTsim was developed. It is used for modelling of sensors, simulations of electrical field and image reconstruction. In this article we present the latest improvement which is modelling of a sensor using algebra of sets. Using primitive elements like rectangle and sector of a ring it is possible to perform operations like union, intersection and difference of two elements with a designed language. With such tools it is easy to prepare complex models of tomographic sensors which have different geometries. In this paper we show two models of sensors with different geometry in order to show how ECTsim solves forward problem.
Keywords:
electrical capacitance tomography, 2D modelling, algebra of setsReferences
Huang S.M., Plaskowski A., Xie C.G., Beck M.S.: Capacitance-based tomographic flow imaging system. Electron. Lett., 2/1998.
Google Scholar
Jaworski A.J., Dyakowski T.: Application of electrical capacitance tomography for measurement of gas-solid flow characteristics in a pneumatic conveying system. Meas. Sci. Technol., 12/2001, 1109–1119.
Google Scholar
Mirkowski J., Smolik W.T., Yang M., Olszewski T., Szabatin R., Radomski D., Yang W.Q.: A New Forward-Problem Solver Based on a Capacitor-Mesh Model for Electrical Capacitance Tomography. IEEE Trans. Instrumentation and Measurement, 57/2008.
Google Scholar
Plaskowski A., Beck M., Thorn R., Dyakowski T.: Imaging industrial flows. Applications of electrical process tomography, IOP Publishing Ltd., 1995.
Google Scholar
Smolik W.: Forward Problem Solver for Image Reconstruction by Nonlinear Optimization in Electrical Capacitance Tomography. Flow Measurement and Instrumentation, 21/2010, 70–77.
Google Scholar
Yang W.Q.: Hardware design of electrical capacitance tomography systems. Meas. Sci. Technol., 7/1996, 225–232.
Google Scholar
Authors
Jacek Kryszynj.kryszyn@ire.pw.edu.pl
Warsaw University of Technology, Faculty of Electronics and Information Technology, The Institute of Radioelectronics and Multimedia Technology, Nuclear and Medical Electronics Division Poland
Authors
Waldemar SmolikWarsaw University of Technology, Faculty of Electronics and Information Technology, The Institute of Radioelectronics and Multimedia Technology, Nuclear and Medical Electronics Division Poland
Statistics
Abstract views: 235PDF downloads: 8811
License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Most read articles by the same author(s)
- Jacek Kryszyn, Damian Wanta, Waldemar T. Smolik, EVALUATION OF THE ELECTRICAL CAPACITANCE TOMOGRAPHY SYSTEM FOR MEASUREMENT USING 3D SENSOR , Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska: Vol. 9 No. 4 (2019)
- Jacek Kryszyn, Waldemar Smolik, TOOLBOX FOR 3D MODELLING AND IMAGE RECONSTRUCTION IN ELECTRICAL CAPACITANCE TOMOGRAPHY , Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska: Vol. 7 No. 1 (2017)
- Mateusz Midura, Przemysław Wróblewski, Damian Wanta, Grzegorz Domański, Mateusz Stosio, Jacek Kryszyn, Waldemar T. Smolik, THE SYSTEM FOR COMPLEX MAGNETIC SUSCEPTIBILITY MEASUREMENT OF NANOPARTICLES WITH 3D PRINTED CARCASS FOR INTEGRATED RECEIVE COILS , Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska: Vol. 11 No. 1 (2021)
- Waldemar Smolik, Jacek Kryszyn, Tomasz Olszewski, Roman Szabatin , METHODS OF SMALL CAPACITANCE MEASUREMENT IN ELECTRICAL CAPACITANCE TOMOGRAPHY , Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska: Vol. 7 No. 1 (2017)
- Jacek Kryszyn, Waldemar Smolik, Tomasz Olszewski, Roman Szabatin, DEVELOPMENT OF ELECTRICAL CAPACITANCE TOMOGRAPH DESIGN IN THE NUCLEAR AND MEDICAL ELECTRONICS DIVISION , Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska: Vol. 7 No. 1 (2017)
- Grzegorz Domański, Bogumił Konarzewski, Robert Kurjata, Krzysztof Zaremba, Janusz Marzec, Michał Dziewiecki, Marcin Ziembicki, Andrzej Rychter, Waldemar Smolik, Roman Szabatin, Piotr Brzeski, DEAD TIME MEASUREMENT BY TWO-SOURCE METHOD – OPTIMIZATION OF MEASUREMENT TIME DIVISION , Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska: Vol. 8 No. 1 (2018)
- Przemysław Wróblewski, Waldemar Smolik, COIL DESIGN WITH LITZE WIRE FOR MAGNETIC PARTICLE SPECTROMETRY , Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska: Vol. 7 No. 1 (2017)
- Grzegorz Domański, Roman Szabatin, Jerzy Kalenik, Adam Jaworski, Przemysław Wróblewski, Waldemar Smolik, Robert Kurjata, Bogusław Konarzewski, Michał Dziewiecki, Janusz Marzec, Krzysztof Zaremba, Marcin Ziembicki, Andrzej Rychter, Jacek Kryszyn, Piotr Brzeski, Jan Szmidt, GAIN PREDICTION THEORY OF SINGLE FOIL GAS ELECTRON MULTIPLIER DETECTOR , Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska: Vol. 7 No. 1 (2017)
- Waldemar Smolik, Jacek Kryszyn, LINEAR OVER RANGES ITERATIVE ALGORITHMS FOR IMAGE RECONSTRUCTION IN ELECTRICAL CAPACITANCE TOMOGRAPHY , Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska: Vol. 7 No. 1 (2017)
- Przemysław Wróblewski, Waldemar Smolik, DEVELOPMENT OF MAGNETIC NANOPARTICLES TOMOGRAPHY IN NUCLEAR AND MEDICAL ELECTRONICS DIVISION , Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska: Vol. 7 No. 1 (2017)
