Magnetoelastic strain sensors for the outdoors application

Magnetoelastic strain sensor for applications in civil engineering was developed, fabricated, and tested. The two-coil sensor operates as an unloaded transformer with the open magnetic core made of a stress-annealed amorphous CoFeCrSiB ribbon. The influence of annealing conditions on the dynamic mag...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2004-05, Vol.272-276, p.E1743-E1745
Main Authors: Bydžovský, Jan, Kraus, Luděk, Švec, Peter, Pasquale, Massimo
Format: Article
Language:English
Subjects:
Amorphous alloy
Civil engineeering
Magnetic anisotropy
Magnetoelastic properties
Strain sensor
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Summary:Magnetoelastic strain sensor for applications in civil engineering was developed, fabricated, and tested. The two-coil sensor operates as an unloaded transformer with the open magnetic core made of a stress-annealed amorphous CoFeCrSiB ribbon. The influence of annealing conditions on the dynamic magnetization characteristics of ribbon is investigated. The sensitivity of output signal to external DC-magnetic field and ambient temperature is tested.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2003.12.414