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Journal of Sensors
Volume 2016, Article ID 1351378, 6 pages
http://dx.doi.org/10.1155/2016/1351378
Research Article

Brillouin Optical Time Domain Analysis Sensor for Active Vibration Control of a Cantilever Beam

Department of Industrial and Information Engineering, Second University of Naples, 81031 Aversa, Italy

Received 27 July 2015; Revised 23 October 2015; Accepted 15 November 2015

Academic Editor: Christos Riziotis

Copyright © 2016 Aldo Minardo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The paper reports the use of a distributed optical fiber sensor based on stimulated Brillouin scattering, for structural vibration control. A cantilevered flexible aluminum beam was used as test-bed for vibration control. The proposed approach allows acquiring simultaneously the dynamic strain at several locations. The dynamic strain measured at one (or more) fiber location can be used to implement any vibration control algorithm. Experimental results are reported in which a voice coil, positioned near the fixed end of the cantilever beam, was employed as actuator for the reduction of the vibrations related to the first bending mode of the beam.