| 高精度准分布式光纤光栅地震检波解调系统的研究 |
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| 引用本文： | 乔学光,丁锋,贾振安,傅海威,营旭东,周锐,宋娟.高精度准分布式光纤光栅地震检波解调系统的研究[J].物理学报,2011,60(7):74221-074221. |
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| 作者姓名： | 乔学光 丁锋 贾振安 傅海威 营旭东 周锐 宋娟 |
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| 作者单位： | (1)西安石油大学光电油气测井与检测教育部重点实验室,西安 710065; (2)西安石油大学光电油气测井与检测教育部重点实验室,西安 710065;西北大学,西安 710069; (3)西安石油大学光电油气测井与检测教育部重点实验室,西安 710065;中国石化中原油田石油化工总厂,濮阳 457061; (4)西北大学,西安 710069 |
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| 基金项目： | 国家自然科学基金(批准号:60727004,61077060),国家高技术研究发展计划(批准号:2007AA03Z413,2009AA06Z203),教育部科技创新工程重大项目(批准号:Z08119),科技部国际科技合作项目(批准号:2008CR1063),中石油创新基金(批准号:2008D-5006-03-08)和陕西重大科技创新项目(批准号:2009ZKC01-19/2008ZDGC-14)资助的课题. |
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| 摘 要： | 提出了一种利用光纤超荧光光源的线性边带做边缘滤波器进行多点多参量实时测量的地震波信号解调系统.由于光源波长检测灵敏度对解调系统的灵敏度起决定作用,故对光源进行了优化设计,使得光源所用的线性段斜率得到了大幅度提高.所设计的解调系统以光源在吸收峰1530 nm 处的两段斜边将系统分为两个部分,各部分对应4个通道.通过对其中两个通道进行地震检波模拟测量,传感解调系统的两部分静态波长灵敏度分别为887.5 mV/nm和-971.7 mV/nm,应变分辨力分别达到了0.95με和0.86με关键词：
光纤光学
地震检波解调
边沿滤波器
光纤光源
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| 关 键 词： | 光纤光学 地震检波解调 边沿滤波器 光纤光源 |
| 收稿时间： | 2010-03-17 |
High-accuracy quasi-distributed optical fiber Bragg gratingseismic demodulation system |
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| Qiao Xue-Guang,Ding Feng,Jia Zhen-An,Fu Hai-Wei,Ying Xu-Dong,Zhou Rui and Song Juan.High-accuracy quasi-distributed optical fiber Bragg gratingseismic demodulation system[J].Acta Physica Sinica,2011,60(7):74221-074221. |
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| Authors: | Qiao Xue-Guang Ding Feng Jia Zhen-An Fu Hai-Wei Ying Xu-Dong Zhou Rui and Song Juan |
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| Institution: | Ministry of Education Key Laboratory of Photoelectricity Gas-oil Logging and Detecting, Xi'an Shiyou University, Xi'an 710065, China;Northwest University, Xi'an 710069, China;Ministry of Education Key Laboratory of Photoelectricity Gas-oil Logging and Detecting, Xi'an Shiyou University, Xi'an 710065, China;Zhongyuan Oilfield Petro Chemical Complex of Sinopec, Puyang 457061, China;Ministry of Education Key Laboratory of Photoelectricity Gas-oil Logging and Detecting, Xi'an Shiyou University, Xi'an 710065, China;Ministry of Education Key Laboratory of Photoelectricity Gas-oil Logging and Detecting, Xi'an Shiyou University, Xi'an 710065, China;Ministry of Education Key Laboratory of Photoelectricity Gas-oil Logging and Detecting, Xi'an Shiyou University, Xi'an 710065, China;Northwest University, Xi'an 710069, China;Ministry of Education Key Laboratory of Photoelectricity Gas-oil Logging and Detecting, Xi'an Shiyou University, Xi'an 710065, China |
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| Abstract: | A new earthquake detection demodulation system for monitoring several points and several parameters at the same time is proposed by using the linear sideband of super-fluorescent fiber source as an edge filter.The sensitivity of whole demodulation system is determined by the detecting sensitivity of source light.Through the optimization of light,the slope of light linear part is improved greatly.According to the rising and the falling of light,the system is divided into two parts each with four channels.Thr... |
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| Keywords: | fiber optics seismic detection edge filter fiber light source |
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