Deformation Monitoring of a Tracking Particle Detector using Fiber Bragg Grating sensors

In this work Fiber Bragg Grating (FBG) technology is proposed as suitable sensing solution for the real-time deformation monitoring of a micro pattern gaseous detector. The basic idea relies at with the development of a system where several FBG strain sensors are surface attached to a detector support panel. Measuring strain on both sides of the panel it is possible to obtain its local curvature that is related to the second derivatives of the shape described by the bent surface. As a demonstrative target, some FBG sensors have been integrated with a miniature detector support panel in order to investigate their potentialities/capabilities in detecting local strain and thus bending. Preliminary experimental results are presented and discussed