摘要
过程层析成像技术是两相流检测中的一种新型的检测技术,有广泛的适用性。本文采用一种新的方法─COMSOL对电容层析成像研究并仿真。首先介绍电容成像系统的结构和电容传感器的数学模型;其次,用COMSOL对管道横截面建模、划分网格并仿真;最后,分析了不同介电常数和不同介质对成像质量的影响。
Process tomography （PT） is a widely available and flexible imaging technique that is a new measuring method applied in measuring multi-phase flow. This paper uses a new method --COMSOL to analysis the electrical capacitance tomography of research and the simulation. First of all, this paper introduces the electrical capacitance tomography system structure and the electrical capacitance sensor mathematical model; In addition, the paper builds a model with COMSOL, divides the mesh and simulates the model; Finally, the paper has analyzed influence of the different dielectric constant and medium to the imaging quality.
出处
《电测与仪表》
北大核心
2009年第11期20-23,共4页
Electrical Measurement & Instrumentation
基金
国家自然科学基金重点资助项目(50736002
E060)
国家863计划资助项目(2007AA05Z331)
关键词
电容层析成像
COMSOL
仿真
灵敏度
electrical capacitance tomography
COMSOL
simulation
sensitivity
