为实现无电磁干扰的小区周界安全检测,开发出了一种新型的分布式干涉型光纤振动传感器,基于M-Z光纤干涉型传感光路,采用干涉法检测光缆振动,构成小区光纤周界检测传感器,当传感光纤受到外界入侵扰动时,接收到的干涉条纹会产生明显的变化,从而给出周界安全预警.并分别以频率13.0678 Hz和20.012 Hz的三角波作为调制信号进行了实验研究,结果表明,分布式干涉型振动传感器非常灵敏,光缆受到轻微的触动,终端检测到的干涉波形就会发生明显的改变,很容易判断有无外界的入侵发生,对安全防范意义重大.
参考文献
| [1] | Fu Lihui.Application of a speech recognition about robust feature which combines wavelet with spectral compression scheme[J].Chinese Journal of Quantum Electronics(量子电子学报),2009,26(4):398-404 (in Chinese). |
| [2] | Tao peilin,Yah Fengping,Liu Peng,et al.Fiber-optic intrusion recognition system based on Mach-Zehnder interferometer[J].Chinese Journal of Quantum Electronics(量子电子学报), 2011,28(2):185-190 (in Chinese). |
| [3] | Pechstedt R D,et al.Design of acompliant-cylinder-type fiber-optic accelerometer:Theory and experiment[J].Appl.Opt.,1995,34(16):3009-3017. |
| [4] | Rivera H L,Garcia-Souto J A,Sanz J.Measurements of mechanical vibrations at magnetic cores of power transformers with fiber-optic interferometric intrinsic sensor[J].IEEE Journal of Selected Topics in Quantum Electronics,2000,6(5):788-797. |
| [5] | Garcia-Souto J A,Rivera H L.Multichannel fiber-optic interferometric sensor for measurements of temperature and vibrations in composite materials[J].IEEE Journal on Selected Topics in Quantum Electronics,2000,6(5):780-787. |
| [6] | Pannell C N,Jones J D C,Jackson D A.The effect of environmental acoustic noise on optical fibre based velocity and vibration sensor systems[J].Measurement Science and Technology,1994,5(4):412-417. |
| [7] | Hu Ai-zi,et al.Characteristics of the etched long-period fiber gratings[J].Acta Optical Sinica,2004,33(8):916-919. |
| [8] | En De,Feng Jieyu,Zhang Ningbo.Design of harmonic oscillator for MOEMS three-component acceleration seismic geophone[J].Chinese Journal of Quantum Electronics(量子电子学报),2012,29(3):362-367 (in Chinese). |
| [9] | Yang Yuanhui.Research of M-Z Optical Fiber Vibrant Detection System (MZ型光纤振动探测系统的研究)[D].Huainan:Masterial Thesis of Anhui University of Science and Technology,2008:6-15 (in Chinese). |
| [10] | Liang Yijun,et al.Optical fiber Sagnac interferometeric sensor for measurement of feeble vibration[J].Journal of HARBIN Engineering University(哈尔滨工程大学学报),2007,28(1):118-122 (in Chinese). |
| [11] | Wang Dawen,Yang bin,et al.The application of optical fiber sensors in the submarine cable monitoring[C].First National Conference on Submarine Cable Communication Technology in Wuhan,(光纤传感器在海缆窃听监测上的应用),2006,(in Chinese). |
| [12] | Liu Bo,Yang Yifei,Zhang Jian,et al.A fiber fence system based on M-Z interferometer[J].Acta Photonica Sinica(光子学报),2007,6:1013-1017 (in Chinese). |
| [13] | Liu Wei.Discussion about optic-fibre Mach-Zehnder interferometer (MZI) multiparameter measurement[J].Journal of Beijing Union University(北京联合大学学报), 2000,14(2):81-83 (in Chinese). |
| [14] | Huang Chong,Cai Haiwen,Geng Jianxin,et al.Wavelength interrogation based on a Math-Zehnder interferometer with a 3×3 fiber coupler for fiber Bragg grating sensors[J].Chinese J.Lasers(中国激光),2005,32(10):1397-1400(in Chinese). |
| [15] | Li Shantian,Zhu Yongmei.Fiber border guard system based the Mach-Zehnder optical fiber interferometer[J].Industrial Control Computer(工业控制计算机),2009,22(8):36-38 (in Chinese). |
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