In this paper results of work directed to make an industrial version of a capacitance tomography application was presented. It was build on a metal pipe with a control and measurement unit connected in. This ECT application was prepared for an independent work, without necessity to connect any external personal computer. For the prepared application dedicated measurement modules were build. Presented modules can be used for preparing other applications based on ECT.


DSP; digital signal processing; tomography

ARKO, Image Reconstruction Algorithm for Electrical Capacitance Tomography (ECT), Lokakarya Komputasi Dalam Sains dan Teknologi Nuklir (XII), 2001.

Brzeski P., Mirkowski J., Olszewski T., Pląsowski A., Smolik W., Szabatin R., Multichannel capacitance tomograph for dynamic process imaging. OptoElectronics Review, 11(3), 175-180, 2003.

Dickin F. J., Hoyle B. S., Hunt A., Huang S. M., Ilyas O., Lenn C., Waterfall R. C., Williams R. A., Xie C. G., Beck M. S.: Tomographic imaging of industrial process equipment: techniques and applications, Circuits, Devices and Systems, 139(1), 72–82, 1992.

Fidos H., Wajman R., Banasiak R., Sowiński J., Sankowski D., Application of Electrical Capacitance Tomography System for Non-Invasive Phases Distribution Detection in Gas-Liquid Mixtures, Automatyka, 14(3/2), 671–680, 2010.

Gamio J. C., Ortiz-Alemn C., Martin R., Electrical capacitance tomography two-phase oil-gas pipe flow imaging by the linear back-projection algorithm, Geofisica Internacional, 44(3), 265–273, 2005.

Hahnel H., Yang W. Q., York T. A., An AC-base capacitance measuring circuit for tomography systems and its silicon chip design. IEE, 1995.

Isaksen Ø., A review of reconstruction techniques for capacitance tomography. Meas. Sci. Technol., 1996.

Rerkratn A., Chitsakul K., Soisup A., Wuti V., Electrical capacitance tomography system for monitoring process flow in pipe, SICE Annual Conference 2010, 3229–3232, 2010.

Yang W. Q., Scott A. L., Beck M. S., High frequency and high resolution capacitance measuring circuit for process tomography. IEE, 1994.

Yang W. Q., York T. A., Capacitance tomography sensor without CMOS switches. ELECTRONICS LETTERS vol. 33 no. 14, 1997.

Yang W. Q.,York T. A., New AC-based capacitance tomography system. IEE, 1999.

Zaprawa P.: Tomograf pojemnościowy do pomiaru medium w rurociągach. Nowa Elektrotechnika 1/2006, s. 15-17.

Zaprawa P.: Tomograf pojemnościowy do zastosowań przemysłowych. Prace Instytutu Elektrotechniki, zeszyt 236, 2008.

Zaprawa P.: Nowa konstrukcja tomografu pojemnościowego do kontroli przepływów dwufazowych. VII Ogólnopolska Konferencja NaukowoTechniczna PES-7 „Postępy w Elektrotechnice Stosowanej”, Kościelisko 2009.

Zaprawa P.: Nowa konstrukcja tomografu pojemnościowego do zastosowań przemysłowych. Miesięcznik Elektronika nr 2/2010.

Zaprawa P.: Capacitance Tomography and its potential application, Electrical Capacitance Tomography — Theoretical Basis and Applications, 206–216, 2010.

Published : 2013-02-14

Zaprawa, P. (2013). AN INDUSTRIAL CAPACITANCE TOMOGRAPHY APPLICATION FOR TWO-PHASE FLOWS. Informatyka, Automatyka, Pomiary W Gospodarce I Ochronie Środowiska, 3(1), 35-38.

Piotr Zaprawa
Instytut Elektrotechniki, Oddział w Gdańsku, Gdańsk  Poland