物理学报2017，Vol.66Issue(7)：48-64,17.DOI:10.7498/aps.66.070705
分立式与分布式光纤传感关键技术研究进展
Advances of some critical technologies in discrete and distributed optical fiber sensing research
摘要
Abstract
With the superiority of anti-electromagnetic interference,corrosion resistance,light quality,small size and so on,optical fiber sensing technology is widely used in aerospace industry,petrochemical engineering,power electronics,civil engineering and biological medicine.It can be divided as discrete and distributed.Discrete optical fiber sensing utilizes fiber sensitive element as sensors to detect the quantity to be measured.Optical spectrum,light intensity and polarization are usually used as the sensitivity parameter because they can be modulated by parameter such as rotation,acceleration,electromagnetic field,temperature,pressure,stress,stress,vibration,humidity,viscosity,refractive index and so on.Fiber works as the channel and links the fiber sensor and demodulating equipment.After a long period of research,the discrete optical fiber sensing technology stretch out many branches,we discussed the most representative ones as follows,the fiber grating sensing technique,the fiber fabry perot sensing technique,the fiber gyroscope sensing technique,the fiber intracavity sensing technique,the fiber surface plasma sensing technique,hollow-core fiber whispering gallery mode sensing technique,magnetic fluid fiber sensing technique and fiber-based optical coherence tomography sensing technique.Based on optical effect as rayleigh scattering,Raman scattering and Brillouin scattering,distributed fiber sensing system uses fiber itself as a sensor,when the vibration,stress,voice or temperature acts on the fiber changes,the optical signal transfers inside the fiber will change accordingly.The fiber distributes in a large range and a long distance,then the signal can be located at different positions and realize the multi-position measurement.We discussed the main distributed fiber sensing technologies as follows,the interferometric disturbance fiber sensing technology,the optical frequency domain reflectometry fiber sensing technology,the Φ-optical time domain reflectometer fiber sensing technology,the optical fiber Brillouin sensing technology and the optical fiber Raman sensing technology.The development of technology is promoting the integration and network of optical fiber sensing,now it also becomes a research hotspot.Fiber optic smart sensor network is formed by various discrete and discrete optical fiber sensors in certain topological structure with the function of self-diagnosis and self-healing.Current research concentrates in the following areas,the increase of the multiplex sensor number,the topological structure with higher robustness and the intelligent control of sensing network.In this paper,we discuss the origination,development and research progress of discrete,distributed optical fiber sensing technologies and optical fiber sensing network technology,and the future research direction is also prospected.关键词
光纤传感/分立式/分布式/传感网Key words
optical fiber sensing/discrete optical fiber sensing/distributed optical fiber sensing/sensor network引用本文复制引用
刘铁根,张红霞,李志宏,于哲,江俊峰,刘琨,张学智,丁振扬,王双,胡浩丰,韩群..分立式与分布式光纤传感关键技术研究进展[J].物理学报,2017,66(7):48-64,17.基金项目
国家自然科学基金(批准号:61675152,61227011,61378043,61475114,61505139,61505138)、国家重大科学仪器设备开发专项(批准号:2013YQ030915)资助的课题.Project supported by National Natural Science Foundation of China (Grant Nos.61675152,61227011,61378043,61475114,61505139,61505138),and the National Instrumentation Program of China (Grant No.2013YQ030915). （批准号:61675152,61227011,61378043,61475114,61505139,61505138）
