高灵敏度RFID传感器用于结构健康监测
Hussein Nesser1,2, Hassan A Mahmoud1,2, Gilles Lubineau1,2
1Mechanical Engineering Program, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Physical Science and Engineering Division, Thuwal, 23955-6900, Saudi Arabia.
概括
一个新的无线应变传感器使用破解的射频识别 (RFID) 设备进行结构健康监测. 这种无功耗,灵活的传感器提供了一种具有成本效益的,非破坏性的方法,用于检测复合材料中的小应变.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 机械工程 机械工程
背景情况:
- 结构健康监测 (SHM) 对关键基础设施和车辆的安全至关重要.
- 传统的嵌入式传感器面临着成本,安装复杂性和潜在的结构妥协的挑战.
- 现有的方法往往缺乏无集成所需的非破坏性和无线功能.
研究的目的:
- 为SHM应用开发一种新的,无线的,无电源的应变传感器.
- 为了利用无线电频率识别 (RFID) 技术进行高度敏感的应变测量.
- 为复合材料创建一个具有成本效益和易于集成的传感解决方案.
主要方法:
- 设计了一种薄而灵活的传感器,利用一个电感-电容 (LC) 电路与一个平行板电容传感单元.
- 在电容电极中内置了定制的裂,以增强压电阻性质并影响电磁波的透.
- 开发了一种使用频率扫描来测量应变引起的共振频率转移的被动检测系统.
主要成果:
- 这种新型传感器在1%以下的菌株中显示出50的度系数.
- 破裂的电极设计使得由于应用于应变的应变,共振频率发生了显著的,可测量的变化.
- 实验验证证了传感器在复合结构中检测小变异的能力.
结论:
- 开发的破解无线应变传感器为SHM提供了一种可行的,非破坏性的方法.
- 这项技术为传统嵌入式传感器提供了一种成本效益高且易于集成的替代方案.
- 无电源和无线设计使其在各种结构监控场景中更容易应用.
相关概念视频
01:30Pulse rhythm
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
01:23Holter Monitor: 24-Hour Monitoring
Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...