Void fraction measurement by a computerized double-point resistivity probe

M. Behnia*, S. J. Gillespie

*Corresponding author for this work

Research output: Contribution to journalArticle


A technique for void fraction and gas velocity measurements in two-phase gas-liquid bubbly flow is described. The double-point resistivity probe, appropriate signal-conditioning units and a personal computer have been integrated to form a data acquisition and analysis package enabling the determination of local flow properties. The system has been tested in an adiabatic air-water vertical up-flow situation and typical results are presented here.

Original languageEnglish
Pages (from-to)243-247
Number of pages5
JournalFlow Measurement and Instrumentation
Issue number4
Publication statusPublished - 1991
Externally publishedYes


  • double-point resistivity probe
  • gas-liquid mixtures
  • void fraction

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