简易光纤Bragg光栅测重传感器的制作  

Fabrication of a Simple Weighing Sensor Based on Fiber Bragg Grating

作　　者：李叶芳[1] 于清旭[1] 周新磊[1] 徐嘉伯[1] 

机构地区：[1]大连理工大学物理与光电工程学院,辽宁大连116024

出　　处：《实验科学与技术》2013年第2期9-11,共3页Experiment Science and Technology

基　　金：大连理工大学教育教学改革基金项目(MS201107)资助

摘　　要：设计了一种测量重力的光纤Bragg光栅传感器。光纤Bragg光栅传感器结构形似梯形体,在梯形体的上台面可以放置被测物体,在下台面中间位置需要粘贴光纤Bragg光栅。通过这种结构可以将纵向力转换为横向力,重力测量转换为横向位移测量。实验结果证明,自制的光纤Bragg光栅传感器测量范围在0～3.5 kg之间时,波长与重力呈现较好的线性关系,进程、回程显示具有较好的重复性。A weighing sensor based on the fiber Bragg grating（FBG） was designed.This sensor has a trapezoid-liked structure.The measured object can be placed on the upper table-board of the trapezoid,and the FBG was adhered on the middle of the lower table-board of the trapezoid.This structure can convert longitudinal force to lateral force,so the weight measurement can be converted to lateral displacement measurement.Experimental results show that this sensor has a good linear relationship between wavelength and weight in the range of 0-3.5 kg,and a good repeatability has also been obtained.

关 键 词：光纤BRAGG光栅 FBG传感器 梯形体结构 测重力 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置] TN253[自动化与计算机技术—控制科学与工程]