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]
Il contenuto (Full text) non è disponibile all'interno di questo archivio.| Tipologia del documento: | Pubblicazione in rivista scientifica |
|---|---|
| Lingua: | English |
| Titolo: | Giant magnetic induction in magneto-elastic resonators and its application for magnetic field sensors |
| Autori: | Autore Email Ausanio, Giovanni [non definito] Iannotti, Vincenzo [non definito] Lanotte, Luciano [non definito] |
| Autore/i: | Ausanio G; Iannotti V; Lanotte L |
| Data: | 2009 |
| Numero di pagine: | 4 |
| Dipartimento: | Scienze fisiche |
| Titolo del periodico: | SENSORS AND ACTUATORS. A, PHYSICAL |
| Data: | 2009 |
| Volume: | 153 |
| Numero: | 2 |
| Intervallo di pagine: | pp. 162-165 |
| Numero di pagine: | 4 |
| Depositato il: | 21 Ott 2010 06:57 |
| Ultima modifica: | 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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