Low-cost fiber sensors for displacement and vibration monitoring

Abstract

The paper presents some fiber optic sensors that have been devised to provide a low-cost solution to monitor mechanical quantities, such as displacement, vibration amplitude and acceleration, in applications where fire safety or electromagnetic immunity are of primary concern. The proposed sensors are based on plastic optical fibers and require simplified interrogation systems since they relate the quantity under measurement with changes in the received optical power. Both contact and non-contact sensors have been developed in order to cover a vast range of applications. © 2014 Springer Science+Business Media.