Feasibility Test of a Liquid Film Thickness Sensor on a Flexible Printed Circuit Board Using a Three-Electrode Conductance Method

被引:17
作者
Lee, Kyu Byung [1 ,2 ]
Kim, Jong Rok [3 ]
Park, Goon Cherl [1 ]
Cho, Hyoung Kyu [1 ]
机构
[1] Seoul Natl Univ, Dept Nucl Engn, Seoul 08826, South Korea
[2] Korea Inst Nucl Safety, Dept Nucl Safety, Daejeon 34142, South Korea
[3] Korea Atom Energy Res Inst, Thermal Hydraul Safety Res Div, Daejeon 34057, South Korea
基金
新加坡国家研究基金会;
关键词
liquid film thickness; liquid film sensor; three electrode conductance method; two-phase flow experiment; 2-PHASE FLOW; CONCURRENT;
D O I
10.3390/s17010042
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Liquid film thickness measurements under temperature-varying conditions in a two-phase flow are of great importance to refining our understanding of two-phase flows. In order to overcome the limitations of the conventional electrical means of measuring the thickness of a liquid film, this study proposes a three-electrode conductance method, with the device fabricated on a flexible printed circuit board (FPCB). The three-electrode conductance method offers the advantage of applicability under conditions with varying temperatures in principle, while the FPCB has the advantage of usability on curved surfaces and in relatively high-temperature conditions in comparison with sensors based on a printed circuit board (PCB). Two types of prototype sensors were fabricated on an FPCB and the feasibility of both was confirmed in a calibration test conducted at different temperatures. With the calibrated sensor, liquid film thickness measurements were conducted via a falling liquid film flow experiment, and the working performance was tested.
引用
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页数:14
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