电阻层析成像系统软场特性研究  

Study on Soft Field Characteristics of Electrical Resistance Tomography System

作　　者：李英[1] 冀海峰[1] 黄志尧[1] 李海青[1] 

机构地区：[1]浙江大学控制系自动化仪表研究所

出　　处：《仪器仪表学报》2002年第z1期208-209,共2页Chinese Journal of Scientific Instrument

基　　金：国家自然科学基金 (5 9995 460 -5 );国家 (863计划 )专项经费 (2 0 0 1AA4132 10 )资助项目

摘　　要：基于有限元仿真结果对电阻层析成像 (ERT)传感器的“软场”特性作了深入研究。研究结果表明 ,ERT传感器的“软场”特性主要体现在其灵敏场的分布受被测介质的分布及两相介质电导率差值的影响。其它条件相同电极数目不同的 ERT的灵敏场分布有所不同 ,但软场特性基本相同。Based on finite element simulation results,the soft field characteristics of ERT sensor were studied.It is found that soft field characteristics are mostly reflected in the influence of distribution of mediums and the difference in conductivity of two phase mediums on the distributions of sensitive field.The distributions of ERT sensitive fields are different if the numbers of electrodes are not the same with other conditions identical,but the characteristics of soft fields are mostly alike.

关 键 词：电阻 层析成像 传感器 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]