Title :
Sensitivity Tuning in Terfenol-D Based Fiber Bragg Grating Magnetic Sensors
Author :
Ambrosino, C. ; Campopiano, S. ; Cutolo, A. ; Cusano, A.
Author_Institution :
Dept. of Eng., Univ. of Sannio, Benevento
Abstract :
In this work, the dependence of the magnetostrictive response on the prestress has been used to improve and fit the performance of Terfenol-D based fiber Bragg grating magnetic sensor. The possibility to tune sensitivity allows to work at different operative conditions and to develop advanced sensors with reconfigurable sensitivity. Performance improvements in terms of magnetic resolution up to 0.0116 A/m have been demonstrated.
Keywords :
Bragg gratings; fibre optic sensors; magnetic sensors; magnetostrictive devices; sensitivity; tuning; Terfenol-D based fiber Bragg grating magnetic sensors; magnetic resolution; magnetostrictive response; sensitivity tuning; Bandwidth; Bragg gratings; Fiber gratings; Magnetic field measurement; Magnetic materials; Magnetic sensors; Magnetosphere; Magnetostriction; Optical filters; Sensor phenomena and characterization; Fiber Bragg grating sensors; Terfenol-D; magnetic sensor; magnetostrictive materials;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2008.925159
