一种基于被动无线电频率标签传感的超低频振动信号的新型测试方法
Litai Lou1, Jianhua Yang1, Kaixuan Ma1
1Jiangsu Key Laboratory of Mine Mechanical and Electrical Equipment, School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China.
The Review of scientific instruments
|September 9, 2024
概括
一种新的射频识别 (RFID) 传感方法准确地测量到0.01Hz的超低频振动. 这种具有成本效益的无接触方法为各种工程应用提供了高精度和稳定性.
科学领域:
- 物理 物理学 物理
- 工程 工程师 工程师 工程师
- 传感技术 传感技术
背景情况:
- 超低频振动 (<1 Hz) 在许多领域都至关重要.
- 现有的测量方法通常对于这些低频率来说是昂贵和低效的.
研究的目的:
- 为测试超低频振动信号引入一种新,具有成本效益和高效的方法.
- 通过各种参数验证拟议方法的性能.
主要方法:
- 使用的无线电频率识别 (RFID) 传感技术.
- 采用被动无线电频率标记相用于振动检测.
- 在不同的频率,测量范围,距离和遮蔽效果上测试了性能.
主要成果:
- 精确测量振动信号低至0.01赫兹.
- 平均相对误差低于1.5%,随着检测频率的提高而下降 (例如,1 Hz<1%).
- 测量准确度不受距离或阻塞的影响;已证明8小时的稳定性.
结论:
- 该RFID传感方法为超低频振动测试提供了一个精确的,被动的,无接触的解决方案.
- 在频率检测,振幅范围和环境适应性方面优于激光移位传感器.
- 适合在工程场景中广泛应用,需要负担得起和方便的超低频振动分析.
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