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。
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.
出处
《电子技术（上海）》
2012年第4期63-65,55,共4页
Electronic Technology
关键词
容抗法
瞬时液膜厚度
检测电路
Capacitance method
instantaneous liquid film thickness
detecting circuit
