| 谢涛,孙媛凯,李川,赵振刚,李英娜,刘爱莲,张长胜.不锈钢毛细管和聚合物联合增敏的高频FBG加速度传感器[J].光电子激光,2017,28(5):465~469 |
| 不锈钢毛细管和聚合物联合增敏的高频FBG加速度传感器 |
| High frequency FBG acceleration sensor with stainless steel capillary and polymer sensitive characteristic |
| 投稿时间：2016-04-09 |
| DOI： |
| 中文关键词: 不锈钢毛细管 聚合物 高频加速度传感器 光纤布拉格光栅(FBG) 有限元分 析 变压器振动监测 |
| 英文关键词:stainless steel capillary polymer high frequency acceleration senso r fiber Bragg grating (FBG) finite element analysis vibration monitoring of t ransformer |
| 基金项目:国家自然科学基金(51567013)资助项目 (昆明理工大学 信息工程与自动化学院,云南 昆明 650500) |
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| 中文摘要: |
| 为了适应于变压器的内部振动监测的需要,提出 了一种不锈钢毛细管和聚合物(Polymer)相结合的高 频光纤布拉格光栅(FBG)加速度传感器。利用有限元分析了 不同毛细管厚度 和多种聚合物填充下传感器的静态与动态特性,根据仿真参数研制了振动传感器,并通过 振动台实验对 其灵敏度以及幅频特性作了实验测试。实验结果表明:选择有机玻璃(PMMA)为聚合物填充 材料时,毛细管厚分别为0.1、0.2和0.3mm时,传感器谐振频率分别为1000050和 1100 Hz,灵敏度分别为32和18pm/g；选择环氧树脂为聚合物填充材料时,毛细管厚分别为0.1和0.3mm时,传感器谐振频率分别 为900000和 1050Hz,灵敏度分别为35、29和20pm/g。 |
| 英文摘要: |
| A novel high frequency fiber Bragg grating (FBG) accelerometer with s tainless steel capillary and polymer is proposed,in order to adapt the need of the transformer′s internal vibrati on monitoring.The structure and working principle of the sensor are described.The static and dynamic characteristics of the sensor are analyzed by using the finite element method with different capillary thicknesses and a variety of poly mers.According to the simulation parameters, the vibration sensor is developed,and the sensitivity and amplitude frequency ch aracteristics are tested by shaking table test.Experimental results show that when selecting polymethyl methacrylate (PMMA ) as polymer filling material and capillary thickness changes as 0.1mm,0.2mm and 0.3mm,the resonant frequencies of the sensor are 1000Hz,1050Hz and 1100Hz,and the sensitivities are 32pm/g,26pm/g and18pm/g.When selecting Epoxy resin as polymer filling materi al and capillary thickness changes as 0.1mm,0.2mm and 0.3mm,the resonant frequencies of the sensor arfe 900Hz, 1000Hz and 1050Hz,and the sensitivities are 35pm/g、29pm/g and 20pm/g. |
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