单目标电阻抗成像的定性分析.pdf

Applied Physics 应用物理, 2016, 6(5), 106-113 Published Online May 2016 in Hans. /journal/app /10.12677/app.2016.65015 Qualitative Analysis of Single Target’s Electrical Resistance Tomography 1 2 Nan Wang , Xiaoqiang Xi 1 School of Science, Xi’an University of Posts and Telecommunications, Xi’an Shaanxi 2 Institute of Internet of Things and IT-Based Industrialization, Xi’an University of Posts and Telecommunications, Xi’an Shaanxi th th th Received: Apr. 25 , 2016; accepted: May 9 , 2016; published: May 13 , 2016 Copyright © 2016 by authors and Hans Publishers Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). /licenses/by/4.0/ Abstract For finding an easy way to obtain the targets information in electrical resistance tomography (EIT) a closed experimental system based on Comsol Multiphysics is designed in which 16 electrodes placed uniformly around a big thin disc with one small target hole. Two nearest electrodes are used as input and output current; the other electrodes are used to measure the boundary voltage. The analyzed results show that the hole’s position and radius have unique and clear relation with the boundary voltage. One can use the boundary voltage information to infer the targets informa- tion quickly, and this method is effective to judge “yes or no” cases of the target. Keywords Single Objective Localization, Electrical Impedance Tomography, Comsol Multiphysics 单目标电阻抗成像的定性分析 1 2 王 楠 ，惠小强 1西安邮电大学理学院，陕西 西安 2西安邮电大学物联网与两化融合研究院，陕西 西安 收稿日期：2016年4月25 日；录用日期：2016年5月9 日；发布日期：2016年