摘要
提出了一种基于光纤布喇格光栅的飞机驾驶杆力传感器.理论上讨论了飞机驾驶杆弹性元件力学特性和光纤布喇格光栅的应变传感特性,分析了飞机驾驶杆力传感器的灵敏特性.实验上通过测量不同外加载荷力作用下光纤光栅中心波长变化,研究了光纤光栅式飞机驾驶杆力传感器的传感响应特性.实验结果表明:光纤光栅中心波长漂移量和外加载荷力成线性关系,与理论分析吻合;传感器的横向与纵向灵敏度可以分别达到2.07pm.N-1和1.80pm.N-1,与数值模拟结果基本一致.
A joy stick transducer based on fiber Bragg grating（FBG）is presented.The sensitivity is analyzed theoretically via discussing the mechanical properties of the elastic element and the strain sensing characteristics of the FBG.By detecting the changing of central wavelength of FBG at different load forces,the response characteristics of the aircraft Joy stick transducer based on fiber Bragg grating are investigated.The experimental results demonstrate that there exists a linear relationship between the central wavelength of FBG and load force,which is consistent with the theoretical analysis.The sensitivities of horizontal and vertical are 2.07 pm·N^-1 and 1.80 pm·N^-1,respectively,which are consistent with the simulation.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2010年第11期1993-1997,共5页
Acta Photonica Sinica
基金
航空科学基金(20080753005)资助
