Title :
Magnetic Field sensors employing Fiber Bragg Grating and Magneto-Elastic active material
Author :
Davino, D. ; Visone, C. ; Ambrosino, C. ; Campopiano, S. ; Capoluongo, P. ; Cusano, A. ; Cutolo, A. ; Giordano, M.
Author_Institution :
Sannio Univ., Benevento
Abstract :
This paper proposes a new device for magnetic field sensing that integrates a magneto-elastic rod as active material, with a Fiber Bragg Grating (FBG) strain sensor. Due to rate independent memory effects of the material, the response of the device is hysteretic and this lowers the device accuracy. Accurate modeling of material allows to embed in the device an algorithm for fast compensation of hysteresis so, yielding to a practically linear response of the sensor.
Keywords :
Bragg gratings; fibre optic sensors; magneto-optical sensors; magnetoelastic effects; strain sensors; FBG; fiber Bragg grating strain sensor; hysteretic device; magnetic field sensors; magnetoelastic active material; memory effects; optical fibers sensors; Bragg gratings; Fiber gratings; History; Magnetic field induced strain; Magnetic hysteresis; Magnetic materials; Magnetic sensors; Magnetostriction; Optical fiber sensors; Sensor phenomena and characterization;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.374915
