摘要
提出了一种基于非本征法布里-珀罗(Fabry-Perot)干涉腔的新型光纤压力传感器及解调方案。采用石英毛细管和端面镀膜的光纤制作F-P传感器,光源经过腔长受压力调制的F-P传感器选频后,用平面光栅和线阵CCD实现光波波长的解调。阐述了光纤F-P传感器的结构和原理,对其解调系统进行了设计分析,并进行了实验验证。系统结构简单,精度和可靠性高,实用性强。
A novel optic fiber pressure sensor based on Fabry-Perot （F-P） cavity interferometer and the demodulating scheme was introduced. The F-P sensor was composed with a quartz tube and end plate fiber. After frequency selecting when light propagates in the F-P sensor cavity modulated by pressure, wavelength demodulation was realized with a plane grating and CCD. The configuration and principle were given. The paper designed and analyzed F-P sensor＇s structure and wave light path demodulating system, and an experiment was set up to validate it. The system has the advantage of simple structure, high precision and reliability, so it has a strong adaptability.
出处
《仪表技术与传感器》
CSCD
北大核心
2008年第8期8-9,17,共3页
Instrument Technique and Sensor
