介绍了一种以悬臂梁为基底,单光纤光栅为传感元件,测量温度和压力的方法.分析了温度和波长的非线性关系对测量结果的影响,给出了布拉格共振波长与温度的线性及非线性的适用范围.光纤光栅的裸光栅部分和预应变部分波长与温度的线性适用范围分别为:-11.2℃～89℃,22.5℃～62.5℃.在此测量范围内,温度和压力响应曲线具有良好的线性.相应的压力灵敏度系数和温度灵敏度系数分别为: 0 nm/N,0.4082 nm/N,0.0128 nm/℃,0.1346 nm/℃.结果表明,该方法简单易行,为温度和压力的实际测量提供了便利.
参考文献
| [1] | Xiao Shaorong,Ben Fulai,Zhu Ping,et al.Design of two-path fiber atmospheric pressure sensor[J].Chinese Journal of Quantum Electronics(量子电子学报),2008,25(5):634-638(in Chinese). |
| [2] | Zhao Hongxia,Bao Jilong.A novel fiber Bragg grating current sensor[J].Chinese Journal of Quantum Electronics(量子电子学报),2004,21(6):706-718(in Chinese). |
| [3] | Xu M G,Dong L,Reekie L,et al.Temperature-independent strain sensor using a chirped Bragg grating in tapered optical fiber[J].Electr.Lett.,1994,30(13):1085-1087. |
| [4] | Liu Ynqi,Guo Zhuanyun,Zhang ying,et al.Research on the simultaneous measurements of pressure and temperature using one fiber grating[J].Chinese Journal of Lasers(中国激光),2000,27(11):1002-1005(in Chinese). |
| [5] | Zhang Bo,Yan Gaoshi,Deng Yijun.Cross-sensitivlty of fiber grating sensor measurement[J].Journal of Applied Optics(应用光学),2007,28(5):615-618(in Chinese). |
| [6] | Zhang Ying,Kai Guiyun,Guan Baiou,et al.Study on the stain sensing characteristics of the fiber grating sensors based on prestrain technique[J].Journal of Nankai University(南开大学学报),2001,34(2):76-78(in Chinese). |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%