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Title: A Design Of Capacitance Sensor System For Void Fraction Measurement In Liquid-Gas Flow
Author: Jin-Ming Zhang, Yi-Ping Liu
Source: Flomeko 2010
Year Published: 2010
Abstract: The sensors, consisting of METC axial synchro driving guard electrodes and two sets of detecting electrodes, make it possible to obtain simultaneously two groups of signals of the void fraction in liquid-gas two-phase flow. The quality of the reconstructed image and the performance of multielectrode capacitive system depend on the uniformity of sensibility distribution between electrode pairs. To determine the spatial sensitivity distribution over the pipe cross section and to study the static responses of the system, a numerical simulation has been employed to analyze the design parameters and the system performance of the capacitive systems. As a consequence, a prototype of 12-electrode internal sensors with METC configuration is presented as first part of ECT system used in liquid-gas flow void fraction measurement.

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