| 光纤光栅高速动态振动信号解调技术的研究 |
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| 引用本文： | 贾振安,营旭东,乔学光,丁锋.光纤光栅高速动态振动信号解调技术的研究[J].光电子．激光,2011(5):729-732. |
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| 作者姓名： | 贾振安 营旭东 乔学光 丁锋 |
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| 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；;西安石油大学光电油气测井与检测教育部重点实验室； |
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| 基金项目： | 国家自然科学基金资助项目(60727004,60654001);国家“863”计划资助项目(2007AA03Z413,2006AA06Z210);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(2008D-5006-03-08) |
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| 摘 要： | 研究了一种基于放大自发辐射光源(ASE)的光纤布拉格光栅(FBG)振动传感解调系统.利用改进光源的基础上,在线性边带的上升沿2.5 nm范围内,线性拟合度达到了0.999 4,实现了波长线性解调,动态测量范围达到40～50 dB.实验表明,本文提出的解调系统结构简单、响应速度快、输出线性好,适合高速动态信号的检测.
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| 关 键 词： | 光纤传感 光纤Bragg光栅(FBG) 边缘滤波 波长解调 光纤光源 |
Study on demodulate technique of high-speed dynamic vibration signal for fiber grating |
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| JIA Zhe-nan,YING Xu-dong,QIAO Xue-guang and DING Feng.Study on demodulate technique of high-speed dynamic vibration signal for fiber grating[J].Journal of Optoelectronics·laser,2011(5):729-732. |
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| Authors: | JIA Zhe-nan YING Xu-dong QIAO Xue-guang and DING Feng |
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| Affiliation: | 1(1.Ministry of Education Key Laboratory of Photoelectricity Gas-oil Logging and Detecting,Xi′an Shiyou University of Petrolenm,Xi′an,710065,China;2.Northwest University,Xi′an,710069,China) |
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| Abstract: | A demodulation system for fiber Bragg grating(FBG) vibration sensor based on amplified spontaneous emission(ASE) is studied.Using the improved light source,the degree of linear fitting is0.999 4,the linear demodulation for wavelength is realized in the linear range of 2.5 nm rising edge,and the dynamic measurement range can reach 40-50 dB.The results indicate that this demodulation system has simple structure,fast response speed and good output linearity,and is very suitable for measurement of h... |
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| Keywords: | fiber sensor fiber Bragg grating(FBG) edge filter wavelength demodulation fiber light source |
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