电阻层析成像传感器软场特性分析  

ANALYSIS OF SOFT FIELD CHARACTERISTICS OF RESISTANCE TOTOMOGRAPHY SENSORS

作　　者：魏颖[1] 颜华[1] 王师[1] 

机构地区：[1]东北大学信息科学与工程学院,沈阳110006

出　　处：《机器人》2000年第6期465-469,共5页Robot

摘　　要：电阻层析成像传感器的敏感场是软场 ,受被测介质的影响 .利用作者建立的 ERT仿真软件为工具 ,通过多种介质分布下灵敏度分布的计算与比较 ,研究了传感器的软场特性 .结果表明 ,不同的介质分布可导致灵敏度有正、负百分之几十的变化 .各处灵敏度变化不仅与场域内介质有关 ,还与该点在灵敏场中所处的位置有关 .Resistance tomography sensor possesses a soft field . This field is distorted by the media material distribution to be measured . Using the ERT finite element method simulation software set up by authors in NEU , the sensitivity distributions under different media distributions were calculated . The soft field characteristics of resistance tomography sensor was investigated by comparing and contrasting these sensitivity distributions . Different phase distributions can result in several tenths increase or decrease in sensitivity values . The sensitivity value chage at each pixel correlates to not only the media distribution inside the field , but also the pixel position.

关 键 词：电阻层析成像 电阻传感器 软场特性 

分 类 号：TP391.5[自动化与计算机技术—计算机应用技术] TP212.1[自动化与计算机技术—计算机科学与技术]