Zhao, Xin, Lucas, Gary and Leeungculsatien, Teerachai (2009) Using the four-sensor probe to measure the bubble velocity vector in bubble water two phase flow. In: What, Where, When: Multi-dimensional Advances for Industrial Process Monitoring International Symposium, Tuesday 23 - Wednesday 24 June 2009, Leeds, UK. (Unpublished)
Abstract

This paper describes the new design of the local four-sensor probe which was used to
measure the velocity vector of the bubbly gas-liquid two phase flow in the pipe which
diameter is 80mm. The bubble velocity vector can be calculated from seven time intervals
taken from the output signals from each of four conductance sensors located within the local
four-sensor probe. Based on the four sensor probe signals, a new signal processing technique
was introduced which can improved the accuracy of the measurement results. The test results
of bubbly flow in the tank, in the flow loop and the bubbly, swirling flow are presented in this
paper as well. The four-sensor probe can be used as a calibration method for the dual-plane EIT
system.

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