Development of the miniaturized four-sensor conductivity probe and the signal processing scheme

The objective of the present study is to develop a miniaturized four-sensor conductivity probe, applicable to a wide range of two-phase flows to obtai n the time-averaged local two-phase flow parameters of various types of bub bles. Experimental data acquired by the probe are categorized into two grou ps in view of two-group interfacial area transport: namely spherical/distor ted bubbles as Group 1 and cap/Taylor bubbles as Group 2. Benchmark experim ent employing the image analysis method is performed. The results from the benchmark experiment assess both the measurement principle and signal proce ssing scheme of the newly developed four-sensor conductivity probe method. (C) 2000 Elsevier Science Ltd. All rights reserved.