Ausanio, Giovanni and Iannotti, Vincenzo and Lanotte, Luciano (2009) Giant magnetic induction in magneto-elastic resonators and its application for magnetic field sensors. [Pubblicazione in rivista scientifica]
Full text not available from this repository.| Item Type: | Pubblicazione in rivista scientifica | ||||||||
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| Lingua: | English | ||||||||
| Title: | Giant magnetic induction in magneto-elastic resonators and its application for magnetic field sensors | ||||||||
| Creators: |
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| Autore/i: | Ausanio G; Iannotti V; Lanotte L | ||||||||
| Date: | 2009 | ||||||||
| Number of Pages: | 4 | ||||||||
| Department: | Scienze fisiche | ||||||||
| Journal or Publication Title: | SENSORS AND ACTUATORS. A, PHYSICAL | ||||||||
| Date: | 2009 | ||||||||
| Volume: | 153 | ||||||||
| Number: | 2 | ||||||||
| Page Range: | pp. 162-165 | ||||||||
| Number of Pages: | 4 | ||||||||
| Date Deposited: | 21 Oct 2010 06:57 | ||||||||
| Last Modified: | 30 Apr 2014 19:43 | ||||||||
| URI: | http://www.fedoa.unina.it/id/eprint/7497 |
Abstract
The competitive performance of an optimized magneto-elastic resonator as sensor of a local magnetic field is reported. The resonator core is constituted by an amorphous ferromagnetic ribbon in which stationary waves are established by means of magneto-elastic coupling. The appropriate choice of the ribbon composition and the use of a special heat treatment are determinant on the sensor response. In proper conditions, the sensitive parameter, namely the electromotive force (root mean square value) induced in a miniaturized pick-up coil, has relative changes of 10^4 for a magnetic field increment of 10 A/m. Magnetic induction fields as small as 10^−8 T can be measured with a technology simpler than in other used devices. A good linearity of the sensor response at low field (from 0 A/m up to 50 A/m) is demonstrated too.
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