| 基于光纤Bragg光栅的地震检波器的理论与实验研究 |
| |
| 引用本文： | 邵敏,乔学光,冯德全,罗小东,赵建林.基于光纤Bragg光栅的地震检波器的理论与实验研究[J].光电子．激光,2012(3):418-424. |
| |
| 作者姓名： | 邵敏 乔学光 冯德全 罗小东 赵建林 |
| |
| 作者单位： | 西北工业大学理学院陕西省光信息技术重点实验室;西北大学物理系;西安石油大学理学院光电油气测井与检测教育部重点实验室;西安石油大学理学院光电油气测井与检测教育部重点实验室;西北工业大学理学院陕西省光信息技术重点实验室 |
| |
| 基金项目： | 国家“863”计划(2009AA06Z203);国家自然科学基金(60727004);教育部科技创新工程重大项目培育资金(708087)资助项目 |
| |
| 摘 要： | 提出了一种新型的基于光纤Bragg光栅(FBG)的地震检波器。FBG地震检波器传感头由平面弹簧片、质量块和FBG构成。给出了该检波器的力学模型,理论推导与分析了该检波器的幅频特性和加速度灵敏特性,并讨论了影响该检波器灵敏度的主要因素。实验结果表明,该检波器具有良好的线性度、稳定性和耐受性;检波器的频率响应范围为10～140 Hz,传感器灵敏度为25.9pm/g,共振频率为167 Hz,较符合理论值;最高可检测加速度值大于30g。
|
| 关 键 词： | 光纤光学 光纤Bragg光栅(FBG) 地震检波器 灵敏度 |
Theoretical and experimental study on seismic sensor based on fiber Bragg grating |
| |
| SHAO Min,QIAO Xue-guang,FENG De-quan,LUO Xiao-dong and ZHAO Jian-lin.Theoretical and experimental study on seismic sensor based on fiber Bragg grating[J].Journal of Optoelectronics·laser,2012(3):418-424. |
| |
| Authors: | SHAO Min QIAO Xue-guang FENG De-quan LUO Xiao-dong and ZHAO Jian-lin |
| |
| Affiliation: | 1(1.Shaanxi Key Laboratory of Optical Information Technology,School of Science,Northwestern Polytechnical University,Xi′an 710072,China;2.Physics Department,Northwest University,Xi′an 710069,China;3.Key Laboratory on Photoelectric Oil-gas Logging and Detecting,Ministry of Education School of Science,Xi′an University of Petroleum,Xi′an 710065,China) |
| |
| Abstract: | A novel fiber Bragg grating(FBG) based seismic sensor is presented in this paper.The FBG seismic sensor head consists of FBG,spring and mass.The mechanical model is demonstrated.The amplitude-frequency and acceleration characteristics of the FBG seismic sensor are theoretically analyzed.The main factors affecting the sensitivity are also given.The experimental results show that the FBG seismic sensor system has excellent stability and high durability.The frequency response range is from 10 Hz to 140 Hz,the resonant frequency is 167 Hz,and the acceleration sensitivity of the FBG seismic sensor is 25.4 pm/g,Which agree with the theoretical values.The maximum detected acceleration is larger than 30 g. |
| |
| Keywords: | fiber optics fiber Bragg grating(FBG) seismic sensor sensitivity |
| 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 |
|
