光纤光栅传感器的原理及应用研究

作为性能优良的敏感元件，均匀光纤布拉格光栅、啁啾光纤布拉格光栅等多种传感器已经有了更多的直用领域。通过光纤布拉格光栅内部写入、干涉法侧面写入、相位模版法写入等制作技术的原理说明和对比评介，通过光纤光栅传感器对所在环境的应变、应力、温度变化和动态磁场的感应原理分析，以及对光纤光栅传感器在复合材料、电力系统、石油天然气井和建筑结构中的应用工程的综述，阐明了这一类传感器件在单参数传感测量，特别是多参数传感测量中还育很大的发展空间，值得进一步研究。

Principle and Typical Current Applications of Fiber Grating Sensors

Fiber grating is diffraction grating which uses a certain method to change the core index permanently and periodically along the axial direction of photosensitive fiber.In the use of fiber as carrier,the fiber grating sensors measure the changes of parameters of the external environment indirectly by detecting the reflective or projective diversifications of the central wave.Characterized by high precision,small diameter,softness,light weight and resistance to the interference of electromagnetic and atomic ...