一个基于弹支和对称补偿结构的低频纤维布拉格格加速传感器,具有灵活的链
Lijun Meng1, Panpan Zhu2, Xin Tan2
1State Key Laboratory of Precision Blasting, Jianghan University, Delta Lake Road, No. 8, Wuhan 430056, China.
Sensors (Basel, Switzerland)
|May 25, 2024
概括
开发了一种新的纤维布拉格格网 (FBG) 加速传感器,用于低频振动测量. 这种灵活的传感器在060Hz的操作范围内达到24.24pm/g的灵敏度.
科学领域:
- 光学工程是指光学工程.
- 机械工程 机械工程
- 传感器技术 传感器技术
背景情况:
- 精确测量低频振动信号在各种工程应用中至关重要.
- 现有的加速度传感器在特定低频任务的灵敏度或工作频率范围内可能存在限制.
研究的目的:
- 设计和验证一种新的低频纤维布拉格格子 (FBG) 加速传感器.
- 为了研究传感器的性能特征,包括灵敏度,共振频率和温度响应.
主要方法:
- 为FBG加速传感器设计了一个具有弹支和对称补偿结构的灵活链.
- 机械建模用于导出传感器灵敏度和共振频率的表达式.
- 使用ANSYS软件进行结构参数优化和模拟分析.
- 制造了一种传感器原型,并对其振幅频率响应,灵敏度和温度特征进行实验评估.
主要成果:
- 设计的传感器原型表现出73赫兹的共振频率.
- 传感器显示有效的操作频率范围为060Hz.
- 传感器的测量灵敏度被确定为24.24 pm/g.
结论:
- 开发的FBG加速传感器符合测量低频振动信号的要求.
- 传感器的设计,包括一个灵活的链和对称的补偿,使得有效的低频振动检测.
- 实验验证证证实了传感器在指定的操作参数内的性能.
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