The paper proposes a novel magnetic field sensor where a technique for hysteresis compensation is employed. The sensor integrates a magnetostrictive material with a Fiber Bragg Grating (FBG) strain sensor. Because of hysteresis and non-linear phenomena taking place in such materials, the sensor's performances may be sensibly reduced. To this aim, magneto-elastic material is accurately modelled in order to compensate hysteresis. in particular, the proposed approach allows to embed the compensation algorithm in the developed device, yielding to a more linear response of the sensor and to a reliable reconstruction Of magnetic field. Results are shown and discussed. (C) 2008 Elsevier B.V. All rights reserved.
The paper proposes a novel magnetic field sensor where a technique for hysteresis compensation is employed. The sensor integrates a magnetostrictive material with a Fiber Bragg Grating (FBG) strain sensor. Because of hysteresis and non-linear phenomena taking place in such materials, the sensor's performances may be sensibly reduced. To this aim, magneto-elastic material is accurately modelled in order to compensate hysteresis. in particular, the proposed approach allows to embed the compensation algorithm in the developed device, yielding to a more linear response of the sensor and to a reliable reconstruction Of magnetic field. Results are shown and discussed. (C) 2008 Elsevier B.V. All rights reserved.
Compensation of hysteresis in magnetic field sensors employing Fiber Bragg Grating and magneto-elastic materials
DAVINO D;VISONE C;CAMPOPIANO S;CUSANO A;CUTOLO A
2008-01-01
Abstract
The paper proposes a novel magnetic field sensor where a technique for hysteresis compensation is employed. The sensor integrates a magnetostrictive material with a Fiber Bragg Grating (FBG) strain sensor. Because of hysteresis and non-linear phenomena taking place in such materials, the sensor's performances may be sensibly reduced. To this aim, magneto-elastic material is accurately modelled in order to compensate hysteresis. in particular, the proposed approach allows to embed the compensation algorithm in the developed device, yielding to a more linear response of the sensor and to a reliable reconstruction Of magnetic field. Results are shown and discussed. (C) 2008 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
