基于Fabry-Perot干涉的高温温度、压力、应变、振动传感器研究进展

Research Progress of Temperature,Pressure,Strain and Vibration Sensors Based on Fabry Perot Interference at High Temperature

光纤F-P传感器是光纤传感的重要分支,具有检测精度高、测量动态范围大、本征防爆等优点,在工业领域已经得到了广泛的研究和应用。对于超过1000℃的高温恶劣环境,普通电类传感器已经无法满足应用需求。近年来,许多专家学者投身于耐高温光纤F-P传感器的研制,通过不断地优化、改进传感器的结构、制备工艺以及选用新型耐高温材料,得到了诸多结构新颖、性能优良的耐高温传感器。从F-P腔的干涉原理出发,介绍了光纤F-P传感器的感知机理,分别综述了光纤F-P温度、压力、应变、振动以及复合型传感器的研究进展,并分析了当前研究所面临的难题和挑战。最后对光纤F-P传感器的发展现状进行总结,并对其未来发展趋势进行展望。

Optical fiber Fabry-Perot(F-P)sensor is an important branch of optical fiber sensor,which has the advantages of high detection accuracy,large measurement dynamic range,intrinsic explosion-proof and so on.It has been widely studied and applied in the industrial field.For the high temperature and harsh environment over 1000℃,ordinary electrical sensors can’t meet the application requirements.In recent years,many experts and scholars have devoted themselves to the development of high temperature optical fiber F-P sensors.Many high temperature sensors with novel structure and excellent performance have been obtained by continuously optimizing and improving the structure and preparation process of the sensors,and selecting new high temperature resistant materials.Based on the interference principle of F-P cavity,the sensing mechanism of fiber F-P sensor is introduced.The research progress of fiber F-P temperature sensor,pressure sensor,strain sensor,vibration sensor and composite sensor is summarized respectively.The problems and challenges of current research are analyzed.Finally,the development process of optical fiber F-P sensor is summarized,and its future development trend is prospected.