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相关概念视频

Holter Monitor: 24-Hour Monitoring01:23

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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...
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相关实验视频

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通过MyShake智能手机网络进行结构健康监测

Sarina C Patel1, Selim Günay2, Savvas Marcou1

  • 1UC Berkeley Seismology Lab, Berkeley, CA 94720, USA.

Sensors (Basel, Switzerland)
|November 14, 2023
PubMed
概括
此摘要是机器生成的。

智能手机现在可以使用MyShake应用程序监控建筑物的健康状况. 这个免费的工具利用手机加速度计来测量结构频率,为结构健康监测 (SHM) 提供了一个低成本,可访问的替代方案.

关键词:
这是我的ShakeShake.基本的频率基本的频率.地震学 地震学摇摆桌子摇摆桌子智能手机就是智能手机.结构健康监测 结构健康监测

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科学领域:

  • 工程 工程师 工程师 工程师
  • 地质物理学 地质物理学
  • 计算机科学 计算机科学

背景情况:

  • 结构健康监测 (SHM) 传统上依赖于昂贵的传感器安装.
  • 可访问性和资源限制限制了广泛的结构性监测.
  • 智能手机提供了一个无处不在的平台,内置加速度计.

研究的目的:

  • 评估智能手机加速度计在结构健康监测中的有效性.
  • 为了利用MyShake应用程序提取建筑基本频率.
  • 展示一个具有成本效益和可访问的SHM方法.

主要方法:

  • 在摇摆表测试中比较基于智能手机的频率提取与传统的加速度计.
  • 收集和分析来自使用MyShake应用程序在真实建筑物中的匿名私人智能手机的数据.
  • 将测量的基本频率与已确定的实证方程进行比较.

主要成果:

  • 智能手机有效地提取建筑物的基本频率.
  • 初步测试显示,智能手机的测量与传统方法保持一致.
  • 来自七座现实建筑的数据显示,在预期范围内的基本频率是合理的.
  • 在四个月内对一个建筑物的重复测量显示出高一致性 (在7%内).

结论:

  • 通过MyShake应用程序,智能手机为结构性健康监测提供了一个可行的和可访问的工具.
  • 这种方法为关键结构测量提供了一个低成本,潜在的无处不在的方法.
  • 重复观察可以提高结构性健康目录的稳定性.