Abstract
The importance and benefits of using fiber optic sensors (FOS) to monitor the deformation of metal structures are considered. The operating principles of fiber optic sensors, their installation methods, and research results are described. Fiber optic technologies are compared with traditional control methods, and their advantages and applications are analyzed. This study examines the results of using fiber optic Bragg grating (FBG) sensors to monitor the deformation of metal bridges. Dynamic loads, temperature changes, and mechanical stresses on bridges can cause structural damage during long-term operation. Real-time monitoring using FBG sensors improves bridge reliability