光学学报, 2000, 20 (4): 538, 网络出版: 2006-08-09
免受温度影响的光纤光栅位移传感器
Temperature-Independent Fiber Bragg Grating Displacement Sensor
摘要
将一定长度、 均匀周期的光纤光栅沿轴向刚性粘贴于厚度呈阶跃分布的等腰三角状悬臂梁界线附近的表面上, 通过观测该光栅反射谱中两个峰值的间距来监测梁自由端在垂直于表面方向上的位移。 实验表明该无源温漂位移线性传感装置的传感灵敏度达9.24×10-2 nm/mm, 与理论值9.4×10-2 nm/mm非常接近。
Abstract
A novel technique for fiber Bragg grating displacement sensor temperature-induced wavelength-shift passive compensation is introduced. With a step thickness isosceles triangle shape cantilever beam, a fiber grating glued on the surface along the beam axis across the thickness border is employed to sense the free end displacement. The experimental sensitivity of 9.24×10-2 nm/mm is obtained, which agrees with the theoretical value 9.4×10-2 nm/mm very well.
余有龙, 余有龙, 谭华耀, 廖信义, 锺永康, 关柏鸥, 董孝义. 免受温度影响的光纤光栅位移传感器[J]. 光学学报, 2000, 20(4): 538. 余有龙, 余有龙, 谭华耀, 廖信义, 锺永康, 关柏鸥, 董孝义. Temperature-Independent Fiber Bragg Grating Displacement Sensor[J]. Acta Optica Sinica, 2000, 20(4): 538.