期刊文献+

基于强度型光纤传感器的声波隔体探测关键技术研究 被引量:2

Research of Acoustic Sounding Sensors over Obstructs Based on Reflective Intensity Modulated Fiber-Optic Sensor
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摘要 利用反射式强度调制型光纤传感器进行间隔固体介质的声波隔体探测,研制了光纤传感声探测装置,重点从光强调制、振动提取和拾振耦合三个方面研究了在声波隔体探测过程中的振动传递机理,对振动传递过程进行了分析研究,从理论上建立了固体介质、探测拾振装置和光纤敏感单元三者的振动传递数学模型。在此基础上设计实现了光纤声传感系统,并给出了声波隔体探测的实验方法。其结果表明,在5cm厚木板、5cm厚水泥预制板、12cm厚砖墙、10cm厚水泥预制板的测试条件下,此系统对频率为1kHz,声级(SPL)为94dB的标准声信号的探测失真度均小于8%。 Reflective intensity modulated fiber-optic sensors (RIM-FOS) have received increasing attention in the fields of civil engineering for their superior ability of explosion proof, immunity to electromagnetic and high accuracy, especially fitting for measurement applications in harsh environment. A novel functioning prototype of an integrated sensor based on RIM-FOS which is used for acoustic sounding over obstruct is introduced. It aims at the integration of optical fibers based sensors into functional probe for extending the capabilities of the portable solutions for the acoustic detection over solid obstructs. According to the laws of wave propagation, the mechanism of acoustic wave transmission between solid medium and acoustic sounding probe is studied and the calculating formula reflecting the wave transfer process was presented. Some details and overview regarding our ongoing efforts are provided. The experimental results show that the developed sensor′s response distortions towards 1 kHz 94 dB sound pressure level (SPL) signal are all lower than 8% in 4 experimental terms including 5 cm wood board, 5 cm concrete prefabricated board, 12 cm brick well and 10 cm concrete prefabricated board.
作者 许秉时 肖文
出处 《光学学报》 EI CAS CSCD 北大核心 2010年第9期2508-2512,共5页 Acta Optica Sinica
基金 国家863计划(2007AA12Z131)资助课题
关键词 探测器 强度调制型光纤传感器 数学模型 声波探测 detectors intensity modulated fiber-optic sensors mathematical model acoustic sounding
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参考文献16

  • 1P.B.Buchade,A.D.Shaligram.Simulation and experimental studies of inclined two fiber displacement sensor[J].Sensors and Actuators A,2006,128(2):312-316.
  • 2Jose Brandao Faria.A theoretical analysis of the bifurcated fiber bundle displacement sensor[J].Trans.Instrum.Mea.,1998,47(3):742-747.
  • 3方兰兰,马军山.一种提高反射式光纤位移传感器灵敏度的方法[J].应用激光,2007,27(2):129-131. 被引量:5
  • 4P.B.Buchade,A.D.Shaligram.Influence of fiber geometry on the performance of twofiber displacement sensor[J].Sensors and Actuators A,2007,136(1):199-204.
  • 5马惠萍,刘丽华,杨乐民,李鹏生.平行光束反射光强调制型光纤位移传感器研究[J].光学学报,2003,23(2):176-181. 被引量:14
  • 6Wu Juntao,Deng KungLi.FiberOptic Photoacoustic spectroscopy sensor for harsh environment gas detection[C].SPIE,2007,6698( 66980E):1-7.
  • 7缪长宗,徐海英,林长圣,刘小廷,刘英.光纤声传感器特性的实验研究[J].传感技术学报,2006,19(3):818-820. 被引量:3
  • 8Murat Okandan,Neal Hall.Optical microphone structures fabricated for broad bandwidth and low noise[C].IEEE Sensors 2007 Conference,2007:1472-1475.
  • 9Christine Prelle,Frederic Lamarque,Philippe Revel.Reflective optical sensor for longrange and highresolution displacements[J].Sensors and Actuators A,2006,127(1):139-146.
  • 10Weimin Chen,Yuanyuan Xie,Peng Zhang et al..Localization theory of distributed fiber vibration sensor[J].Chin.Opt.Lett.,2009,7(3):186-187.

二级参考文献18

共引文献41

同被引文献25

  • 1黄旭光,叶晓靖,张小康,冯金垣,罗坚.光纤型热光可调光衰减器的设计及其衰减分析[J].光学学报,2006,26(12):1787-1791. 被引量:4
  • 2T. L. Yeo, T. Sun, K. T. V. Grattan. Fibre-optic sensor technologies for humidity and moisture measurement [J]. Sens. Actuators A, 2008, 144(2) : 280-295.
  • 3Byoungho I.ee. Review of the present status of optical fiber sensors[J]. Opl. Fiber Technol. , 2003, 9(2): 57-79.
  • 4L. Falco, H. Berthou, F. Cochet et al.. Temperature sensor using single mode fiber evanescent field absorption[C]. SPIE, 1985, 586:114-119.
  • 5Sameer M. Chandani, Nicolas A. F. Jaeger. Fiber optic temperature sensor using evanescent fields in D fibers[J]. IEEE Photon. Technol. Lett. , 2005, 17(12): 2706-2708.
  • 6Lei Zhang, Fuxing Gu, Jingyi Lou et al.. Fast detection of humidity with a subwavelength diameter fiber taper coated with gelatin film[J]. Opt. E.rpress, 2008, 16(17): 13349-13353.
  • 7Xiaokang Zhang, Delin Yan, Shupei Mo et al.. Fabrication and characterization of doubly cladding fiber optical temperature sensors[C]. SPIE, 2(309, 7508:750807.
  • 8Michel Monerie. Propagation in doubly clad single mode fibers[J]. IEEE J. Quant. Electron. , 1982, 18(4) : 535-542.
  • 9Marko Kezmah, Denis Donlagic. All fiber, low cost single point and quasi-distributed evanescent field temperature sensors with extended temperature measurement range, based on standard telecommunication graded index fibers[J]. Appl. Opt., 2008, 47(23) : 4212-4220.
  • 10Xiaokang Zhang, Runhua Li. Determination of zero incident angle by optical feedback effect and its applications in the measurement of refractive indices [C ]. SPIE, 2009, 7506:750620.

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