| Bragg光纤光栅法布里-珀罗传感器的应变测量 |
| |
| 引用本文： | 吴朝霞,吴飞,蔡璐璐,李志全. Bragg光纤光栅法布里-珀罗传感器的应变测量[J]. 光学技术, 2005, 31(4): 559-562 |
| |
| 作者姓名： | 吴朝霞 吴飞 蔡璐璐 李志全 |
| |
| 作者单位： | 东北大学,秦皇岛分校,河北,秦皇岛,066004;燕山大学,河北,秦皇岛,066004 |
| |
| 摘 要： | 提出了一种对静态应变进行高分辨率测量的方法。该方法是把Bragg光纤光栅(FBG)与全光纤法布里_珀罗传感器(FFPI)组合起来,利用FBG反射波长的漂移特性来测量干涉条纹的数目。通过利用FFPI和伪外差解调法对小数条纹进行解调,可实现高分辨率的测量。结果表明,静态应变的测量分辨率达到了33×10-9ε(ε为应变)。
|
| 关 键 词： | 静态应变 光纤光栅 伪外差 |
| 文章编号： | 1002-1582(2005)04-0559-04 |
| 修稿时间： | 2004-08-26 |
Strain measurement using a fiber Bragg grating Fabry-Perot sensor |
| |
| WU Zhao-xia,WU Fei,CAI Lu-lu,LI Zhi-quan. Strain measurement using a fiber Bragg grating Fabry-Perot sensor[J]. Optical Technique, 2005, 31(4): 559-562 |
| |
| Authors: | WU Zhao-xia WU Fei CAI Lu-lu LI Zhi-quan |
| |
| Affiliation: | WU Zhao-xia~1,WU Fei~2,CAI Lu-lu~2,LI Zhi-quan~2 |
| |
| Abstract: | A novel method for high resolution static strain measurement was proposed and demonstrated. This method was based on the combination of two fiber Bragg grating (FBG) and an all_fiber Fabry_Perot sensor (FFPI) formed by the two FBGs. The wavelength shift of the FBGs was used for determining the fringe number of the interferometic signal while the FFPI, and the pseudo_heterodyne was used to carry out high_resolution measurement. The resolution for static strain by the actual measuring is 33×10~(-9)ε. |
| |
| Keywords: | static strain fiber grating pseudo_heterodyne |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
