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fiber stress sensor
相关语句
  光纤应力传感器
     Research and Design of Optical Fiber Stress Sensor Using Polarization Maintaining Fiber
     基于保偏光纤的光纤应力传感器研究与设计
短句来源
     Distributed Fiber Stress Sensor Based on Optical Time-domain Reflectometry
     基于光时域反射法的分布式光纤应力传感器
短句来源
     Research on Distributed Optical Fiber Stress Sensor with High Stress Sensitivity and High Spacial Resolving Power
     高灵敏度、高分辨率分布式光纤应力传感器研究
短句来源
     The principle of the optical time-domain reflectometry(OTDR)and the principle of microbend losses of fiber were studied,based on those principles a distributed fiber stress sensor detected by OTDR was designed.
     研究了光纤时域反射仪的基本原理和光纤的微弯损耗机理,在此基础上开发了一种用光时域反射仪(OTDR)进行探测的分布式光纤应力传感器
短句来源
     Recent Progress in Distributed Optical Fiber Stress Sensor
     全分布式光纤应力传感器的研究新进展
短句来源
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  “fiber stress sensor”译为未确定词的双语例句
     Recent development and applications of distributed optical fiber stress sensor are described briefly.
     描述了分布式光光纤应力传感系统的近期发展及其应用。
短句来源
     Finally,the developing trend and practical applications of distributed optical fiber stress sensor are discussed.
     最后展望并讨论了全分布式应力传感器的发展趋势和应用前景。
短句来源
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Based on the effect of mismatch of mode volume and principle of microbending. A novel intensity fiberoptic stress sensor is presented.The responses of the optical fiber stress sensors are linear,repeatable, have a high cyclic endurance and no measurable hysteresis.

基于模体积失配效应与微弯原理,提出了一种新颖的强度型光纤应力传感器,其传输光功率变化与应力之间近似为线性关系,重复性好,无迟滞现象

Recent development and applications of distributed optical fiber stress sensor are described briefly. Based on the theory that coupling coefficient is related to external force, a distributed optical fiber stress sensor is introduced. Distribution of external force is measured by polarization coupling coherence. The principle of location and measuring strength of stress is discussed. The influence of light and polarizer and other things upon the sensitivity and resolving power of the sensor,...

Recent development and applications of distributed optical fiber stress sensor are described briefly. Based on the theory that coupling coefficient is related to external force, a distributed optical fiber stress sensor is introduced. Distribution of external force is measured by polarization coupling coherence. The principle of location and measuring strength of stress is discussed. The influence of light and polarizer and other things upon the sensitivity and resolving power of the sensor, is discussed. SLD is used as light and proton-exchange LiNbO3 wave-guide is used as polarizer. At the wavelength of 1.3 μm, the resolution of the sensor is better by ± 10 cm and its sensitivity is better by 5%.

描述了分布式光光纤应力传感系统的近期发展及其应用。介绍一种分布式光纤应力传感器系统,该系统基于保偏光纤受外力扰动时模式耦合系数与外力大小有关的原理,采用偏振耦合干涉定位确定受力大小与空间位置方法,分析了系统的定位原理与测力大小原理以及光源、偏振器件等对系统灵敏度与分辨率的影响。系统采用SLD作光源,质子交换LiNbO3波导作偏振器件,在1.3 μm波长条件下,获得的应为灵敏度优于5%,空间分辨率小于10cm。

The principle of the optical time-domain reflectometry(OTDR)and the principle of microbend losses of fiber were studied,based on those principles a distributed fiber stress sensor detected by OTDR was designed.The structure of microbended fiber modulation and the system of sensor were designed and tested.The influence factors of system's sensitivity and spacial resolution were also analyzed.The conclusions were drawn as follows:the spacial resolution is rich to 3 m and the range of stress...

The principle of the optical time-domain reflectometry(OTDR)and the principle of microbend losses of fiber were studied,based on those principles a distributed fiber stress sensor detected by OTDR was designed.The structure of microbended fiber modulation and the system of sensor were designed and tested.The influence factors of system's sensitivity and spacial resolution were also analyzed.The conclusions were drawn as follows:the spacial resolution is rich to 3 m and the range of stress measuring is 1 km.It has been proved by experiments:enables to provide the forecast of disasters such as landslips precisely and in time.

研究了光纤时域反射仪的基本原理和光纤的微弯损耗机理,在此基础上开发了一种用光时域反射仪(OTDR)进行探测的分布式光纤应力传感器。对光纤微弯调制机构和传感器系统进行了设计与实验,分析了系统的灵敏度和空间分辨率的影响因素,实现了空间分辨率3m,测量范围1km的测量精度。现场实验表明:对山体滑坡等事故的发生能实现及时准确的灾害预报。

 
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