EXTENSOMETRE A LONGUE BASE, A FIBRE OPTIQUE TENDUE ET RESEAU DE BRAGG, ET PROCEDE DE FABRICATION DE CET EXTENSOMETRE

摘要

An extensometer including a base, a tensioned optical fiber, and a Bragg grating. The extensometer relates particularly to monitoring of structures. Part of the optical fiber containing the Bragg grating is arranged in a tube. This part is tensioned between the two ends of the tube. The ends of this part are fixed to the ends of the tube, and the tube is rigidly fixed to a host material.