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A simple intensity modulation based fiber-optic accelerometer

机译:一个简单的基于强度调制的光纤加速度计

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摘要

A fiber-optic accelerometer with simple structure and high performance based on intensity modulation is proposed. Using only a length of single mode fiber compressed by a cantilever, the intensity of reflected light is modulated by the vibration acceleration applied to it. The effects of the fiber location, the dimension parameters of the cantilever on frequency response and sensitivity are investigated. The experimental results demonstrate that the accelerometer has a flat frequency response over a 4700 Hz bandwidth and a sensitivity of 21.24 mV/g with a cantilever dimension of 30 x 8 x 1.6 mm(3) and a distance of 5 mm between the fiber location and the suspended cantilever end; the coefficient of determination is better than 0.999. In addition, the effect of temperature and the stability of the sensing system are investigated. (C) 2016 Elsevier Inc. All rights reserved.
机译:提出了一种基于强度调制的结构简单,高性能的光纤加速度计。仅使用由悬臂压缩的一段单模光纤,反射光的强度就受到施加在其上的振动加速度的调节。研究了光纤位置,悬臂尺寸参数对频率响应和灵敏度的影响。实验结果表明,该加速度计在4700 Hz带宽上具有平坦的频率响应,灵敏度为21.24 mV / g,悬臂尺寸为30 x 8 x 1.6 mm(3),光纤位置与光纤之间的距离为5 mm。悬臂悬臂端测定系数优于0.999。此外,还研究了温度的影响和传感系统的稳定性。 (C)2016 Elsevier Inc.保留所有权利。

著录项

  • 来源
    《Optical fiber technology》 |2016年第5期|53-58|共6页
  • 作者单位

    North China Elect Power Univ, Inst Elect & Elect Engn, Baoding 071003, Peoples R China;

    North China Elect Power Univ, Inst Elect & Elect Engn, Baoding 071003, Peoples R China;

    North China Elect Power Univ, Inst Elect & Elect Engn, Baoding 071003, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Fiber-optic accelerometer; Intensity modulation; Vibration measurement;

    机译:光纤加速度计;强度调制;振动测量;

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