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首页> 外文期刊>Applied optics >Low-cost vibration sensor based on dual fiber Bragg gratings and light intensity measurement
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Low-cost vibration sensor based on dual fiber Bragg gratings and light intensity measurement

机译：基于双光纤布拉格光栅和光强测量的低成本振动传感器

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摘要

A vibration monitoring system based on light intensity measurement has been constructed, and the designed accelerometer is based on steel cantilever frame and dual fiber Bragg gratings (FBGs). By using numerical simulations for the dual FBGs, the dependence relationship of the area of main lobes on the difference of initial central wavelengths is obtained and the most optimal choice for the initial value and the vibration amplitude of the difference of central wavelengths of two FBGs is suggested. The vibration monitoring experiments are finished, and the measured data are identical to the simulated results.
机译：构建了基于光强测量的振动监测系统，设计的加速度计基于钢悬臂框架和双光纤布拉格光栅（FBG）。通过对双FBG的数值模拟，得到了主瓣面积与初始中心波长差的相关关系，两个FBG的初始值和中心波长差的振动幅度的最佳选择为建议。振动监测实验结束，实测数据与模拟结果相同。

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