METHODS OF SMALL CAPACITANCE MEASUREMENT IN ELECTRICAL CAPACITANCE TOMOGRAPHY
Author(s) -
Waldemar T. Smolik,
Jacek Kryszyn,
Tomasz K. Olszewski,
Roman Szabatin
Publication year - 2017
Publication title -
informatyka automatyka pomiary w gospodarce i ochronie środowiska
Language(s) - English
Resource type - Journals
eISSN - 2391-6761
pISSN - 2083-0157
DOI - 10.5604/01.3001.0010.4596
Subject(s) - capacitance , electrical capacitance tomography , excitation , materials science , sine wave , differential capacitance , capacitance probe , electronic circuit , acoustics , electrical engineering , physics , voltage , engineering , electrode , quantum mechanics
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.
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