一个新的三轴光纤布拉格格基光学加速器的静态校准
Abraham Perez-Alonzo1, Luis Alvarez-Icaza1, Gabriel E Sandoval-Romero2
1Instituto de Ingeniería, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico.
Sensors (Basel, Switzerland)
|February 13, 2025
概括
这项研究增强了用于结构健康监测的自主光学加速度计. 改进的传感器准确度和降低的噪音可以精确检测结构变化和运动.
科学领域:
- 工程 工程师 工程师 工程师
- 材料科学 材料科学 材料科学
- 传感器技术 传感器技术
背景情况:
- 光学传感器为结构健康监测提供高灵敏度和电磁免疫性.
- 之前的工作引入了一个基于Fiber Bragg Grating (FBG) 的加速计,用于自主应用程序.
研究的目的:
- 介绍一个改进的自主光学加速度计的表征结果.
- 在结构监测应用中展示更高的精度和准确性.
主要方法:
- 传感器轴直角性和电子降噪的表征.
- 开发一种使用最小方程方法的12参数矩阵校准方法.
- 实施校正术语表,以提高加速度估计的准确性.
主要成果:
- 在X轴和Y轴的静态表征中实现了0.9999的R2.
- 证明了增益,偏移和横轴灵敏度的补偿.
- 报告的零平均误差和加速元件的最大标准偏差为0.018 m/s2.
- 在测试位置上达到6.7 × 10−3 m/s2的最大RMSE.
结论:
- 增强的光学加速度计为结构健康监测提供了高精度和准确性.
- 开发的校准方法有效地弥补了传感器的缺陷.
- 这种自主装置适用于检测微妙的结构变化和动态运动.
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