航空航天光纤传感技术研究进展

Advances in optical fiber sensing technology for aviation and aerospace application

光纤传感器具有体积小、重量轻、测量灵敏度高、复用能力强、抗电磁干扰、易于嵌入材料内部等诸多优点,非常适合航空航天极端环境下温度、应变、压力、声振动以及角速度等多种参量的测量。着重介绍基于EFPI、FBG以及FOG的航空航天光纤传感技术研究现状,以及天津大学在航空航天光纤传感技术研究领域的最新进展,包括航空航天温度、应变、压力、声振动传感系统,航空光纤法珀大气压力测量实验及多参量光纤传感系统在空间环境模拟设备中的应用实例。讨论航空航天光纤传感技术的难点问题,在此基础上指出航空航天光纤传感技术的发展趋势。

Optical fiber sensors are very suitable for the measurement of temperature,strain,pressure,acoustic vibration and angular ve-locity in the extreme working conditions of aviation and aerospace,due to their advantages of being small size,lightweight,multiplexing capability,immunity to electromagnetic interference and easy to be buried into interior of material.The optical fiber sensing researches based on EFPI,FBG and FOG in aviation and aerospace field are focused in this review.And the recent progress of fiber sensing tech-niques for aviation and aerospace application in Tianjin University is introduced,which includes the temperature,strain,pressure and a-coustic vibration sensing system,the measurement experiment of optical fiber Fabry-Perot pressure in aviation field and the application of multi-parameters sensing system in space environment simulator.Finally,the key problems about optical fiber sensing technology in avi-ation and aerospace field are discussed and the developing trend is predicted.