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Type: Artigo de periódico
Title: A high frequency electronic transducer for multiphase flow measurements
Author: Belo, Francisco Antônio
Moura, Luiz Felipe Mendes de
Abstract: This paper describes an electronic transducer for multiphase flow measurement. Its high sensitivity, good signal to noise ratio and accuracy are achieved through an electrical impedance sensor with a special guard technique. The transducer consists of a wide bandwidth and high slew rate differentiator where the lead inductance and stray capacitance effects are compensated. The sensor edge effect is eliminated by using a guard electrode based on the virtual ground potential of the operational amplifier. A theoretical modeling and a calibration method are also presented. The results obtained seem to confirm the validity of the proposed technique.
Subject: Multiphase Flow
Editor: The Brazilian Society of Mechanical Sciences
Rights: aberto
Identifier DOI: 10.1590/S0100-73861999000400005
Date Issue: 1-Dec-1999
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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