Development of autobiased linear field sensors based on asymmetrical giant magnetoimpedance (AGMI) effect in Corich amorphous microwires upon the application of a biasing dc current is approached. Upon biasing dc currents, the highest field sensitivity of AGMI of 20%/Oe was found at a biasing dc current of 10 mA. The reduction of the AGMI under a biasing dc current of 25 mA and a frequency of 10 MHz has been observed. The result indicates that an optimum design of autobiased linear field sensors based on AGMI can be achieved by applying the biasing dc current of 10 mA and in the frequency range of 100 kHz–5 MHz. A stress-induced change in AGMI has also been found in these microwires and this offers a new approach to the development of stress sensors. All these features make the Co-rich amorphous microwire a multifunctional and smart material that can be used for different purposes of sensing applications.
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ASME 7th Biennial Conference on Engineering Systems Design and Analysis
July 19–22, 2004
Manchester, England
ISBN:
0-7918-4175-8
PROCEEDINGS PAPER
Giant Magnetoimpedance Effect in a Co-Based Microwire for Quick-Response Magnetic Sensor Applications Available to Purchase
Manh-Huong Phan,
Manh-Huong Phan
Bristol University, Bristol, UK
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Hua-Xin Peng,
Hua-Xin Peng
Bristol University, Bristol, UK
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Michael R. Wisnom,
Michael R. Wisnom
Bristol University, Bristol, UK
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Seong-Cho Yu
Seong-Cho Yu
Chungbuk National University, Cheongju, South Korea
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Manh-Huong Phan
Bristol University, Bristol, UK
Hua-Xin Peng
Bristol University, Bristol, UK
Michael R. Wisnom
Bristol University, Bristol, UK
Seong-Cho Yu
Chungbuk National University, Cheongju, South Korea
Paper No:
ESDA2004-58071, pp. 591-597; 7 pages
Published Online:
November 11, 2008
Citation
Phan, M, Peng, H, Wisnom, MR, & Yu, S. "Giant Magnetoimpedance Effect in a Co-Based Microwire for Quick-Response Magnetic Sensor Applications." Proceedings of the ASME 7th Biennial Conference on Engineering Systems Design and Analysis. Volume 3. Manchester, England. July 19–22, 2004. pp. 591-597. ASME. https://doi.org/10.1115/ESDA2004-58071
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