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首页> 外文会议>International conference on mechatronics technology >Acoustic Emission Burst-type Signal Detection Using Mach-Zehnder Interferometer Based Optic Fiber Sensor
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Acoustic Emission Burst-type Signal Detection Using Mach-Zehnder Interferometer Based Optic Fiber Sensor

机译：基于Mach-Zehnder干涉仪的光纤传感器的声发射突发型信号检测

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摘要

Optical fiber sensors are rapidly emerging as viable alternatives to piezoelectric devices as effective substitution of detecting acoustic emission (AE) owing to potential advantages over conventional tuned piezoelectric transducers.The authors have investigated Mach-Zehnder interferometer based AE sensors for acoustic emission detecting,with the hope of replacing the existing conventional piezoelectric transducer in storage tank floor evaluation.Sensitivity and performance of Mach-Zehnder AE sensor have been evaluated compared with existing transducer.Further,Hsu-Nielsen pencil lead break test was conducted to explore details of Mach-Zehnder AE sensors in acoustic emission burst signal monitoring.The results indicate that optical fiber AE sensors based on Mach-Zehnder interferometer can be used as transducers sensitive to acoustic events and the indication of imminent failure of a structure.Optical fiber sensors are useful in many applications where conventional piezoelectric transducers are not well suited.In addition,some suggestions are put forward for forthcoming actual application on the spot.
机译：由于与传统的调谐压电换能器相比具有潜在的优势，光纤传感器迅速替代压电设备成为有效替代声发射（AE）的可行替代方法。作者研究了基于Mach-Zehnder干涉仪的AE传感器，用于声发射检测。希望能在储罐底板评估中取代现有的传统压电换能器。与现有换能器相比，对Mach-Zehnder AE传感器的灵敏度和性能进行了评估。此外，还进行了Hsu-Nielsen铅笔铅断裂试验，以探索Mach-Zehnder AE的细节结果表明，基于Mach-Zehnder干涉仪的光纤AE传感器可用作对声事件和结构即将失效的指示敏感的换能器。常规压电换能器不太适合。此外，还为现场实际应用提出了一些建议。

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  • 来源
  • 会议地点 Tianjin(CN)
  • 作者

    Tao Zhang; Hao Feng; Yang An; Shi-Jiu Jin; Zhou-Mo Zeng;

  • 作者单位

    Sate Key Laboratory of Precision Measuring Technology Instruments, Tianjin University, Tianjin, China;

    Sate Key Laboratory of Precision Measuring Technology Instruments, Tianjin University, Tianjin, China;

    Sate Key Laboratory of Precision Measuring Technology Instruments, Tianjin University, Tianjin, China;

    Sate Key Laboratory of Precision Measuring Technology Instruments, Tianjin University, Tianjin, China;

    Sate Key Laboratory of Precision Measuring Technology Instruments, Tianjin University, Tianjin, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 TH15;
  • 关键词

    optical fiber sensors; Mach-Zehnder interferometer; storage tanks; acoustic emission;

    机译：光纤传感器;马赫曾德尔干涉仪;储罐;声发射;

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