METHODS OF SMALL CAPACITANCE MEASUREMENT IN ELECTRICAL CAPACITANCE TOMOGRAPHY

Waldemar Smolik; Jacek Kryszyn; Tomasz  Olszewski; Roman  Szabatin

doi:10.5604/01.3001.0010.4596

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Published: Mar 3, 2017

DOI: https://doi.org/10.5604/01.3001.0010.4596

DOI

https://doi.org/10.5604/01.3001.0010.4596

Authors

Waldemar Smolik

W.Smolik@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

Jacek Kryszyn

J.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

Tomasz Olszewski

T.Olszewski@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

Roman Szabatin

R.Szabatin@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

Abstract

The paper presents the main methods of small capacitance measurement used in electrical capacitance tomography: the AC method with a sine wave excitation and the charge-discharge method with square wave excitation. Construction of synchronous detector for both circuits was discussed. A modified "charge-discharge" method was presented.

Keywords:

capacitance measurement, AC method, charge-discharge method, electrical tomography

References

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Smolik, W., Kryszyn, J., Olszewski, T. ., & Szabatin , R. . (2017). METHODS OF SMALL CAPACITANCE MEASUREMENT IN ELECTRICAL CAPACITANCE TOMOGRAPHY. Informatyka, Automatyka, Pomiary W Gospodarce I Ochronie Środowiska, 7(1), 105–110. https://doi.org/10.5604/01.3001.0010.4596

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