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http://dx.doi.org/10.13067/JKIECS.2017.12.6.1057

Magnetic Sensor Using Giant Magneto-Impedance Effect  

Choi, Kyoo-Nam (Dept. of Information and Telecom. Engineering, Incheon National University)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.12, no.6, 2017 , pp. 1057-1064 More about this Journal
Abstract
High sensitivity magnetic sensor having foreign metal detection capability is proposed utilizing giant magneto-impedance effect. Strip sensor showed the increasing output voltage when the external magnetic field was applied along with strip from strip grounding point, although the initial DC voltage varied depending on the pointing direction of strip sensor. Proposed sensor was able to eliminate more than half of background noise using active noise filter to achive high sensitivity, and it showed the capability to detect magnetized foreign metal object independent of ambient electro-magnetic noise and earth magnet. In case of ferrous sphere, the metal detection up to 0.8mm diameter was experimentally demonstrated at 5mm distance from strip sensor.
Keywords
Magnetic Sensor; Giant Magneto-Impedance; Electronic Compass;
Citations & Related Records
Times Cited By KSCI : 11  (Citation Analysis)
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