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Type: Artigo de periódico
Title: High Frequency Electronic Transducer For Multiphase Flow Measurements
Author: Belo F.A.
Mendes De Moura L.F.
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.
Editor: Braz Soc Mech Sci, Rio de Janeiro, Brazil
Rights: aberto
Identifier DOI: 
Date Issue: 1999
Appears in Collections:Unicamp - Artigos e Outros Documentos

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