Vibration detectors with carbon fiber cantilever

JUN Lin; ZHANG Yi-xin; ZHANG Tian-yu

doi:10.3788/OPE.20152313.0374

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Vibration detectors with carbon fiber cantilever

更新时间：2020-08-13

- Vibration detectors with carbon fiber cantilever
- Optics and Precision Engineering Vol. 23, Issue 10z, Pages: 374-380(2015)
- 作者机构：
  
  吉林大学仪器科学与电气工程学院,吉林长春,130026
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20152313.0374
  CLC： TN253;P631.4+36
- Received：17 April 2015，
  
  Revised：08 May 2015，
  
  Published：14 November 2015
- 稿件说明：
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林君, 张义鑫, 张天瑜. 碳纤维悬臂梁式振动检波器[J]. 光学精密工程, 2015,23(10z): 374-380

JUN Lin, ZHANG Yi-xin, ZHANG Tian-yu. Vibration detectors with carbon fiber cantilever[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10z): 374-380
林君, 张义鑫, 张天瑜. 碳纤维悬臂梁式振动检波器[J]. 光学精密工程, 2015,23(10z): 374-380 DOI： 10.3788/OPE.20152313.0374.

JUN Lin, ZHANG Yi-xin, ZHANG Tian-yu. Vibration detectors with carbon fiber cantilever[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10z): 374-380 DOI： 10.3788/OPE.20152313.0374.

摘要

为了预测地震所产生的地应力

设计了一种用来测量振动的光纤光栅检波器。基于光纤布拉格光栅传感技术研制了一种利用碳纤维片作为悬臂梁的振动检波器。通过设计的3种不同的碳纤维式的悬臂梁结构(宽悬臂梁

细悬臂梁以及梯形悬臂梁)

制作了4个不同的振动检波器。引用3.0486 g的质量体

在相同温度下对振动检波器进行测试;通过对振动数据和振动曲线的分析

得到了最优的悬臂梁结构。分析了不同悬臂梁结构影响振动传感器响应结果的原因与内在激励。在此基础上

对传感器配重、光栅固定方式、配胶比例

传感器核心部分的制作工艺等进行了改进

得到了优化的光纤光栅振动传感器。实验显示悬臂梁式振动检波器的静态及动态响应性能较好

最终实现了工作波长为1550 nm

灵敏度可达200 V/ms

-1

的光纤光栅振动传感器。

Abstract

Many kinds of grating vibration detectors have been developed to predict earthquakes in recent years. Based on carbon fiber cantilever

a fiber Bragg grating vibration detector was fabricated in this paper. Then

four different vibration detectors were made based on three different carbon fiber cantilever structures

involving in cantilever beam

narrow cantilever beam and the trapezoidal cantilever. By introducing a mass body in 3.0486 g

the vibration detectors were tested in the same temperature. By analysing the vibration data and curves of the four vibration detectors

the best cantilever beam stucture was chosen. After analyzing the effects of different cantilever structures on the response ability of detectors

the antilever vibration detector with good static and dynamic curves of the response to the vibration detector were realized by further optimization of the bob-weight

fiber grating fixation and the proportion of rubber compound. The sensitivity of the vibration detector is 200 V/ms

-1

at work wavelength of 1550 nm.

关键词

Keywords

references

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