| 基于双光纤光栅温度压力同时区分测量的研究 |
| |
| 引用本文： | 乔学光.基于双光纤光栅温度压力同时区分测量的研究[J].光电子．激光,2010(1):12-14. |
| |
| 作者姓名： | 乔学光 |
| |
| 作者单位： | 西安石油大学光电油气测井与检测教育部重点实验室;西北大学; |
| |
| 基金项目： | 国家“863”计划资助项目(2007AA06Z210,2007AA3Z413);;国家自然科学基金资助项目(60654001,60727004);;教育部科技创新工程重大资助项目(Z08119);;中石油创新基金资助项目(2008D-5006-03-08) |
| |
| 摘 要： | 提出了一种基于薄壁圆柱壳体的压力温度同时区分测量的光纤Bragg光栅(FBG)传感器结构。将双FBG沿着轴向分别粘贴在壁厚度不均匀的柱体外表面,由于两个FBG受到温度影响而引起的波长漂移量是相同的,这时两光栅Bragg波长漂移量之差就完全取决于压力,从而实现对压力温度的区分测量。实验测得,在0～7MPa内传感器的压力响应灵敏度为0.073nm/MPa,在22.6～112.6℃内的温度灵敏度为0.037nm/℃,分别是裸FBG的24倍和3.7倍。结果也表明,这种传感器具有良好的线性度与可重复性。
|
| 关 键 词： | 光纤光学 传感器 光纤Bragg光栅(FBG) 区分测量 |
Study on simultaneous discriminating measurement of temperature and pressure based on dual FBG |
| |
| QIAO Xue-guang.Study on simultaneous discriminating measurement of temperature and pressure based on dual FBG[J].Journal of Optoelectronics·laser,2010(1):12-14. |
| |
| Authors: | QIAO Xue-guang |
| |
| Affiliation: | QIAO Xue-guang1,2,CHEN Yi1,JIA Zhen-an1(1.Ministry of Education Key Laboratory of Photoelectricity Gas-oil Logging , Detecting,Xi′an Detroleum University,Xi′an 710065,China,2.Northwest University,Xi′an 710069,China) |
| |
| Abstract: | Based on the thin-wall cylindrical shell,a new fiber Bragg grating(FBG) sensor to measure the temperature and the pressure simultaneously is proposed by using dual FBGs.Two gratings are stuck to the outer surface of the cylindrical shell with nonuniform thickness along the axial direction.The gratings have similar temperature responses but different strain responses,so the simultaneous measurement can be realized.The experimental results show that the pressure sensitivity coefficient and temperature sensiti... |
| |
| Keywords: | fiber optics sensor fiber Bragg grating(FBG) discriminating measurement |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《光电子．激光》浏览原始摘要信息 |
|
点击此处可从《光电子．激光》下载全文 |
