| 基于容抗法的瞬时液膜厚度测量系统设计 |
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| 引用本文： | 丁明亮,张娟. 基于容抗法的瞬时液膜厚度测量系统设计[J]. 电子技术, 2012, 39(4): 63-65,55 |
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| 作者姓名： | 丁明亮 张娟 |
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| 作者单位： | 1. 曲阜师范大学电气信息与自动化学院
2. 日照职业技术学院 |
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| 摘 要： | 设计了一种采用容抗法测量气液两相流瞬时液膜厚度的测量系统,通过测量气液两相流瞬时液膜厚度,来反映气液两相流截面持液率大小。对容抗法测量瞬时液膜厚度的原理进行了详细分析,建立了探针电容传感器的数学模型,完成了检测电路设计。根据此数学模型,确立了瞬时液膜厚度与输出电压的线性关系。在虚拟电子工作平台上,对该测量系统做了仿真实验分析,仿真数据表明该测量系统是切实可行的。
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| 关 键 词： | 容抗法 瞬时液膜厚度 检测电路 |
Design of Instantaneous Liquid Film Thickness Measurement System Based on Capacitance Method |
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| Ding Mingliang , Zhang Juan. Design of Instantaneous Liquid Film Thickness Measurement System Based on Capacitance Method[J]. Electronic Technology, 2012, 39(4): 63-65,55 |
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| Authors: | Ding Mingliang Zhang Juan |
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| Affiliation: | 1.College of Electrical Engineering and Automation,Qufu Normal University 2.Rizhao Polytechnic) |
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| Abstract: | A measuring system adopting Capacitance method which is used in measuring instantaneous liquid film thickness of gas-liquid two-phase flow is designed,the sectional liquid hold up of gas-liquid two-phase flow can be reflected by measuring the instantaneous liquid film thickness of gas-liquid two-phase flow.The theory of capacitive reactance method used in measuring the instantaneous liquid film thickness of gas-liquid two-phase flow is analyzed in detail,the mathematical model of the probe sensor is established,and the detecting circuit design is completed.According to this mathematical model,the linear relationship between the instantaneous liquid film thickness and the output voltage is established.In a virtual electron working platform the simulation experiment for this system is carried out,and the simulation data show that the measuring system is feasible. |
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| Keywords: | Capacitance method instantaneous liquid film thickness detecting circuit |
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