Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102330
Title: Magnetic actuator based on giant magnetostrictive material Terfenol-D with strain and temperature monitoring using FBG optical sensor
Authors: García-Miquel, H.
Barrera, D.
Amat, R.
Kurlyandskaya, G. V.
Sales, S.
Issue Date: 2016
Publisher: Elsevier B.V.
Citation: Magnetic actuator based on giant magnetostrictive material Terfenol-D with strain and temperature monitoring using FBG optical sensor / H. García-Miquel, D. Barrera, R. Amat, et al. — DOI 10.1016/j.measurement.2015.11.035 // Measurement: Journal of the International Measurement Confederation. — 2016. — Vol. 80. — P. 201-206.
Abstract: We have designed a temperature and strain monitoring system for a magnetic actuator based on the giant magnetostrictive material Terfenol-D (Tb0.3 Dy0.7Fe1.92) with Fiber Bragg grating (FBG) sensors. Magneto-elastic properties of Terfenol-D depend on magnetization, stress pre-history, and temperature. In order to simultaneously monitor these effects, we have implemented a system based on a cylindrical Terfenol-D rod monitored with four FBGs that allows making the appropriate compensations on the strain measurement due to temperature drift. We have measured the magnetostriction in the axial and the transverse directions for the Terfenol-D rod with two perpendicular FBGs, and calculated the Poisson ratio. An additional mechanical system for strain amplification has been designed in order to increase sensitivity, by a factor of 4, in the strain measurement with the FBG sensor. © 2015 Elsevier Ltd.
Keywords: FIBER BRAGG GRATING
FIBER OPTIC
MAGNETIC OPTIC ACTUATOR
MAGNETO OPTIC SENSORS
MAGNETOSTRICTION
TERFENOL-D
ACTUATORS
BRAGG GRATINGS
FIBER OPTIC SENSORS
FIBER OPTICS
MAGNETIC ACTUATORS
MAGNETISM
MAGNETOSTRICTION
MAGNETOSTRICTIVE DEVICES
STRAIN MEASUREMENT
FIBER BRAGG GRATING SENSORS
GIANT MAGNETOSTRICTIVE MATERIALS
MAGNETOOPTIC SENSORS
MECHANICAL SYSTEMS
STRAIN AMPLIFICATION
STRAIN MONITORING SYSTEM
TEMPERATURE MONITORING
TERFENOL-D
FIBER BRAGG GRATINGS
URI: http://hdl.handle.net/10995/102330
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 84949560189
PURE ID: 605015
f1f72fc1-692c-4002-9f46-b97249d0092b
ISSN: 2632241
DOI: 10.1016/j.measurement.2015.11.035
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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