Title :
Feasibility study on Electromagnetic Tomography system using GMR sensors
Author :
Chao, Wang ; Fanwei, Li
Author_Institution :
Tianjin Key Lab. of Process Meas. & Control, Tianjin Univ., Tianjin, China
Abstract :
In this paper, theory of Giant MagnetoResistance (GMR) effect was described. And a detection circuit for GMR sensors was designed. The detection circuit was tested respectively at constant magnetic field and time-varying magnetic field. Based on the results of experiments, the feasibility of the Electromagnetic Tomography (EMT) system using GMR sensors was analyzed. The difficulties and the questions in the work of the EMT system using a GMR sensor were summed up and some advices for future work were put forward.
Keywords :
electric sensing devices; giant magnetoresistance; magnetic sensors; tomography; EMT system; GMR effect; GMR sensors; constant magnetic field; electromagnetic tomography; giant magnetoresistance sensors; time-varying magnetic field; Field programmable gate arrays; Giant magnetoresistance; Magnetic sensors; Magnetic superlattices; Sensor systems; Tomography; Giant magnetoresistance; electromagnetic testing; electromagnetic tomography;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on
Conference_Location :
Hohhot
Print_ISBN :
978-1-4244-9436-1
DOI :
10.1109/MACE.2011.5987898
