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| 基于弹簧管悬臂梁的FBG压力传感的研究 | |
| 引用本文： | 邵军,刘君华,乔学光,贾振安,王宏亮,周红. 基于弹簧管悬臂梁的FBG压力传感的研究[J]. 光电子．激光, 2006, 17(7): 807-809 |
| 作者姓名： | 邵军 刘君华 乔学光 贾振安 王宏亮 周红 |
| 作者单位： | 1. 西安交通大学电气学院,陕西,西安,710049;西安石油大学光电传感测量陕西省重点实验室,陕西,西安,710065 2. 西安交通大学电气学院,陕西,西安,710049 3. 西安石油大学光电传感测量陕西省重点实验室,陕西,西安,710065 |
| 基金项目： | 高比容电子铝箔的研究开发与应用项目;教育部科学技术研究项目;中国石油天然气集团公司资助项目;陕西省教育厅资助项目;辽宁省沈阳市科技局资助项目;西安石油大学校科研和教改项目 |
| 摘 要： | 提出了一种等强度悬臂梁与弹簧管结合的高灵敏度的光纤布拉格光栅(FBG)压力传感器。将FBG粘贴在悬臂梁的下表面,粘贴方向与悬臂梁轴线一致。理论分析了FBG中心波长相对偏移量与压力的关系,实验测得该传感器的压力灵敏度为2.767×10-4/MPa,是裸FBG压强灵敏度系数的142倍。压力灵敏度与悬臂梁和弹簧管的几何参数有关,改变参数,可获得不同灵敏度的压力传感器。 |
| 关 键 词： | 压力传感器 光纤布拉格光栅(FBG) 悬臂梁 灵敏度 |
| 文章编号： | 1005-0086（2006）07-0807-03 |
| 收稿时间： | 2005-12-19 |
| 修稿时间： | 2005-12-192006-03-25 |
A FBG Pressure Sensor Based on Bourdon and Cantilever Beam of Uniform Strength |
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| SHAO Jun,LIU Jun-hu,QIAO Xue-guang,JIA Zhen-an,WANG Hong-liang,ZHOU Hong. A FBG Pressure Sensor Based on Bourdon and Cantilever Beam of Uniform Strength[J]. Journal of Optoelectronics·laser, 2006, 17(7): 807-809 | |
| Authors: | SHAO Jun LIU Jun-hu QIAO Xue-guang JIA Zhen-an WANG Hong-liang ZHOU Hong |
| Abstract: | Because of the adaptability of mechanical control,a cantilever which is coupled with a bourdon tube is proposed.Fiber Bragg grating(FBG) is affixed on the surface of the cantilever,and the affixing direction is consistent with axes of the cantilever,so an optical fiber pressure sensor is gotten.The relations of central wavelength shift and the pressure are analyzed.It is indicates that the central wavelength of the sensor and the pressure has good linearity.The pressure applied on the cantilever can be measured by measuring the central wavelength.The experimental value of the pressure sensitivity coefficient is 0.436 5 nm/MPa.It is 142 times of that of the bare FBG.It is also indicated that the pressure sensitivity of the sensor varies with the size of the cantilever and bourdon tube. |
| Keywords: | pressure sensor fiber Bragg grating(FBG) cantilever beam sensitivity |
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