Title :
Magnetic Field Sensor Based on Backscattered Intensity Using Ferrofluid
Author :
Candiani, A. ; Bravo, Mikel ; Pissadakis, Stavros ; Cucinotta, A. ; Lopez-Amo, Manuel ; Selleri, Stefano
Author_Institution :
Inf. Eng. Dept., Univ. of Parma, Parma, Italy
Abstract :
A magnetic field sensor based on backscattered intensity of a single mode fiber immersed in a ferrofluid is experimentally demonstrated. An OTDR system is used to interrogate the reflected power at the fiber end face, revealing >2 dB of modulation for magnetic field changes up to 1525 Gauss. The sensor shows the same response when used in remote and multiplexed configurations, demonstrating the high potential and versatility of this sensing approach.
Keywords :
fibre optic sensors; magnetic field measurement; magnetic fluids; magnetic sensors; optical modulation; optical time-domain reflectometry; OTDR system; backscattered intensity; ferrofluid; magnetic field sensor; multiplexed configurations; reflected power; remote configurations; single mode fiber; Optical fiber; ferromagnetic materials; magnetic devices; multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2267812
