An Electrical Impedance Imaging System Towards Edge Intelligence for Non-Destructive Testing of Concrete  

作　　者：Abolfazl Roshanpanah Mahdi Abbasi Hani Attar Ayman Amer Mohammad R.Khosravi Ahmed A.Solyman 

机构地区：[1]Department of Electrical Engineering,Islamic Azad University,Science and Research Brance,Tehran 1477893855,Iran [2]Department of Computer Engineering,Bu-Ali Sina University,Hamedan 6517838695,Iran [3]Department of Energy Engineering,Zarqa University,Zarqa 13110,Jordan [4]Department of Computer Engineering,Persian Gulf University,Bushehr 7516913817,Iran [5]Department of Electrical and Electronics Engineering,Faculty of Engineering and Architecture,NişantaşıUniversity,Istanbul 34398,Turkey

出　　处：《Tsinghua Science and Technology》2024年第3期883-896,共14页清华大学学报（自然科学版（英文版）

摘　　要：In the construction industry,to prevent accidents,non-destructive tests are necessary and cost-effective.Electrical impedance tomography is a new technology in non-invasive imaging in which the image of the inner part of conductive bodies is reconstructed by the arrays of external electrodes that are connected on the periphery of the object.The equipment is cheap,fast,and edge compatible.In this imaging method,the image of electrical conductivity distribution(or its opposite;electrical impedance)of the internal parts of the target object is reconstructed.The image reconstruction process is performed by injecting a precise electric current to the peripheral boundaries of the object,measuring the peripheral voltages induced from it and processing the collected data.In an electrical impedance tomography system,the voltages measured in the peripheral boundaries have a non-linear equation with the electrical conductivity distribution.This paper presents a cheap Electrical Impedance Tomography(EIT)instrument for detecting impurities in the concrete.A voltage-controlled current source,a micro-controller,a set of multiplexers,a set of electrodes,and a personal computer constitute the structure of the system.The conducted tests on concrete with impurities show that the designed EIT system can reveal impurities with a good accuracy in a reasonable time.

关 键 词：non-destructive testing system CONCRETE electrical impedance tomography 

分 类 号：U495[交通运输工程—交通运输规划与管理] TN929.5[交通运输工程—道路与铁道工程] TP18[电子电信—通信与信息系统]