光纤光栅传感技术应用研究及其进展

Study of application and evolution of fiber grating sensors technique

光纤光栅传感器具备普通光纤传感器所不具有的不受光强波动影响、自参考的绝对测量、便于单光源波分复用和光集成四大优点,因此成为当前国内外的一个研究热点.目前光纤光栅传感器在航空航天领域和民用工程领域已得到了较为广泛的应用,而且各种新的解调方案不断被提出,然而被测参量之间的交叉敏感和解调技术等因素影响了光纤光栅传感器商品化的进程.当前的问题是探索性价比更适合于产业化的技术方案,使光纤光栅传感器能更广泛地为国防和国民经济建设服务.因此,对光纤光栅传感技术在国内外的应用研究进行了较为全面的综述,以使有关方面和同行对该研究领域投入更多的人力物力.

The fiber grating sensors have four merits: light source fluctuation immunity, self-reference for absolute value measurement, convenience for wavelength division multiplexing and optical integration, compared with general optical fiber sensors, so it has been a hot research field at home and abroad recently. At present, the fiber grating sensors are widely applied to the aeronautics, space technology and the civil engineering fields, and various new demodulation techniques are presented. But some factors, cross sensitivity between parameters and demodulation technique to be further researched and so on, prevent fiber grating sensors from being a commercial product. Now the technique scheme of higher cost performance adapted to industrialization should be presented, so that the fiber grating sensors could be widely served for national defence and national economic construction. Therefore, researchers and research organizations will pay more attention to the researches on the fiber grating sensors. Investigations on the applications of the fiber grating sensor technique are also summarized here in detail.