| 基于双LPFG解调的高灵敏度振动检测系统 |
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| 引用本文： | 姜明顺,孟玲,隋青美,彭蓬,赵增玉.基于双LPFG解调的高灵敏度振动检测系统[J].光电子．激光,2011(8):1207-1210. |
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| 作者姓名： | 姜明顺 孟玲 隋青美 彭蓬 赵增玉 |
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| 作者单位： | 山东大学控制科学与工程学院； 兖矿集团有限公司；;山东大学控制科学与工程学院；;山东大学控制科学与工程学院；;兖矿集团有限公司；;兖矿集团有限公司； |
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| 基金项目： | 国家自然科学基金资助项目(61074163);山东大学自主创新基金资助项目(2010GN066) |
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| 摘 要： | 基于边缘滤波解调原理，提出了一种利用双长周期光纤光栅（LPFG）解调光纤布拉格光栅（FBG）振动传感信号的新方法。利用传输光谱叠加后的双LPFG作为边缘滤波器，增大了FBG传感信号解调灵敏度。静态实验结果表明，利用单、双LPFG作为滤波器解调的灵敏度分别为-1．1965dB／nm和-2．4836dB／nm，双LPFG解...
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| 关 键 词： | 双长周期光纤光栅(LPFG) 边缘滤波 振动检测 冲击检测 高灵敏度 |
High-sensitivity vibration detection system based on double-LPFG demodulation |
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| JIANG Ming-shun,MENG Ling,SUI Qing-mei,PENG Peng and ZHAO Zeng-yu.High-sensitivity vibration detection system based on double-LPFG demodulation[J].Journal of Optoelectronics·laser,2011(8):1207-1210. |
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| Authors: | JIANG Ming-shun MENG Ling SUI Qing-mei PENG Peng and ZHAO Zeng-yu |
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| Affiliation: | School of Control Science and Engineering,Shandong University,Jinan 250061,China; Yanzhou Coal Mining Group Co.Ltd.,Zoucheng 273500,China;School of Control Science and Engineering,Shandong University,Jinan 250061,China;;School of Control Science and Engineering,Shandong University,Jinan 250061,China;;Yanzhou Coal Mining Group Co.Ltd.,Zoucheng 273500,China;Yanzhou Coal Mining Group Co.Ltd.,Zoucheng 273500,China |
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| Abstract: | The fiber Bragg grating(FBG) vibration system demodulated by double-long period fiber grating(LPFG) is proposed based on the edge filter analysis.The double-LPFG is adopted as filter after the transmission spectra super positioned,in order to improve the demodulation sensitivity.The static experiments illustrate that the demodulated sensitivities using single-and double-LPFG as filter are-1.196 5 dB/nm and-2.483 6 dB/nm,respectively.The demodulation sensitivity of the double-LPFG filter is about... |
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| Keywords: | double-long period fiber grating(LPFG) edge filter vibration detection impact detection high-sensitivity |
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