Feasibility study on Electromagnetic Tomography system using GMR sensors

Feasibility study on Electromagnetic Tomography system using GMR sensors

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 Ele...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Wang Chao, Li Fanwei
Format: Tagungsbericht
Sprache:chi ; eng
Schlagworte:
electromagnetic testing
electromagnetic tomography
Field programmable gate arrays
Giant magnetoresistance
Magnetic sensors
Magnetic superlattices
Sensor systems
Tomography
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Beschreibung
Zusammenfassung: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.
DOI:10.1109/MACE.2011.5987898