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首页> 外文期刊>Journal of Basic and Applied Physics >A New Style of FBG Vibration Sensor
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A New Style of FBG Vibration Sensor

机译：新型FBG振动传感器

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摘要

A new style of FBG vibration sensor with a special structure of metal three-legged stand and elastic cantilever is designed for many low-frequency tests of engineering structures and mechanical systems. It can work with a wide band, zoom in vibrating signal and increase sensitivity. And mathematical model of vibration sensor is established. Furthermore, natural frequency, sensitivity, distortion factor, horizontal anti-jamming capability of sensor were measured. Experimental results show that to detect vibrations below 75Hz is entirely feasible, with FBG vibration sensor designed. And its natural frequency is about 100 HZ, frequency range is 75 Hz, the resolution of amplitude is 0.3 nm/mm, sensitivity is 28.5 pm/m.s-2.
机译：一种新型的FBG振动传感器，具有特殊的金属三足支架和弹性悬臂结构，可用于工程结构和机械系统的许多低频测试。它可以与宽带一起使用，放大振动信号并提高灵敏度。建立了振动传感器的数学模型。此外，还测量了传感器的固有频率，灵敏度，失真因子，水平抗干扰能力。实验结果表明，采用FBG振动传感器设计，检测低于75Hz的振动是完全可行的。其固有频率约为100 HZ，频率范围为75 Hz，幅度分辨率为0.3 nm / mm，灵敏度为28.5 pm / m.s-2。

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