用于两相流检测电容层析系统成像的迭代算法  

Iterative algorithm for electrical capacitance tomography system applied in measurement of two-phase flow

作　　者：潘时林[1] 李元科[1] 

机构地区：[1]华中科技大学机械科学与工程学院,湖北武汉430074

出　　处：《传感器技术》2004年第10期72-74,共3页Journal of Transducer Technology

摘　　要：电容层析成像技术(ECT)在应用生产过程中作为一种在线检测技术而得到充分应用。通过精确测量ECT系统的12个电极之间的电容,并利用测量数据进行二维模型有限元法计算其电场敏感分布图,提出了一种迭代的成像算法。该迭代算法可比较精确地对管道横截面的两相流进行图像重建。并讨论了工业应用的实际问题和目前的技术上的缺陷性。Elactrical capacitance technology(ECT) which is full used in productive process is an on-line detecting technology.Through accurately measuring the capacitances between the ECT system's 12 electrodes,using these measurement values to acquire the electrical sensitivity maps with finite element method(FEM),an image-reconstruction algorithm based on iteration method is presented.This algorithm can precisely conduct image-reconstruction for pipe cross-section's two-phase flow .The real problems of industrial application and the present limitation of this technique are also discussed.

关 键 词：电容层析成像技术 迭代算法 有限元法 图像重建 两相流 检测 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置] O359[自动化与计算机技术—控制科学与工程]