Magnetostrictive amorphous sensor for biomedical monitoring

A novel sensor, very simple and inexpensive to manufacture, and with adjustable sensitivity, was developed for the monitoring of articular movements and lung ventilation. This sensor makes use of the change in permeability with respect to mechanical stress or strain. If an amorphous ribbon is glued...

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Bibliographic Details
Published in:IEEE transactions on magnetics 1992-09, Vol.28 (5), p.2400-2402
Main Authors: Klinger, T., Pfutzner, H., Schonhuber, P., Hoffmann, K., Bachl, N.
Format: Article
Language:English
Subjects:
Amorphous magnetic materials
Amorphous materials
Biological and medical sciences
Biomedical monitoring
Biosensors
Investigative techniques, diagnostic techniques (general aspects)
Magnetic materials
Magnetic sensors
Magnetostriction
Manufacturing
Mechanical sensors
Medical sciences
Miscellaneous. Technology
Pathology. Cytology. Biochemistry. Spectrometry. Miscellaneous investigative techniques
Plastics
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Summary:A novel sensor, very simple and inexpensive to manufacture, and with adjustable sensitivity, was developed for the monitoring of articular movements and lung ventilation. This sensor makes use of the change in permeability with respect to mechanical stress or strain. If an amorphous ribbon is glued on a plastic ribbon which shows considerably higher thickness, bending this compound sensor will cause plain tensile stress or compression in the amorphous magnetostrictive material. In the same way, using a prebent plastic ribbon yields an effective sensor for elongation in the connecting line of the sandwich ends.< >
ISSN:0018-9464
1941-0069
DOI:10.1109/20.179505