Optical Fiber Grating Sensors

摘要

The past decade has seen rapid advances in research, development, and application of optical fiber Bragg grating technology. Sensors based on this technology have special advantages of being lightweight and small in size, inert and corrosion resistant, immune to electromagnetic interference (EMI), easily multiplexed and multifunctional (they can measure strain, temperature, pressure, and vibration) and these advantages made fiber Bragg grating sensors promising candidates for structural health monitoring. This paper serves as a tutorial to introduce the basics about fiber optical sensors, in particular, fiber Bragg grating sensors, for structural health monitoring. The operating principles, types, major components, and merits of these sensors are presented in the paper. This paper will also review the-state-of-the-art of applications of fiber Bragg grating sensors for structural health monitoring.