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Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
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使用高采样率THz技术估计胸部运动.

Christoph Hoog Antink1, Romina Schulz2, Maurice Rohr1

  • 1KIS*MED (AI Systems in Medicine Lab), Technische Universität Darmstadt, 64283 Darmstadt, Germany.

Sensors (Basel, Switzerland)
|June 10, 2023
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概括

太赫兹 (THz) 光谱学准确地估计了呼吸对象的胸部运动和呼吸速率. 这种非接触式方法提供了一个精确的替代电心电图 (ECG) 衍生的呼吸,达到低的1.40 BPM误差.

关键词:
这是一个光子的光子.呼吸速率 呼吸速率 呼吸速率 呼吸速率太赫兹 (Terahertz) 是一个频率.不显眼的感知传感器

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科学领域:

  • 生物医学工程 生物医学工程
  • 物理 物理学 物理
  • 呼吸系统生理学 呼吸系统生理学

背景情况:

  • 估计呼吸速率对于监测患者健康至关重要.
  • 电心电图 (ECG) 衍生呼吸是一种常见的方法,但具有局限性.
  • 不需要接触,需要精确的呼吸监测.

研究的目的:

  • 评价一台太赫兹 (THz) 均线光谱系统,用于估计胸部运动.
  • 为了比较基于THz的呼吸估计与ECG衍生的呼吸.

主要方法:

  • 使用了高采样率THz同体光谱系统.
  • 健康的受试者进行了不同频率的呼吸.
  • 胸部运动是根据THz阶段信息估计的.
  • 记录了ECG信号以进行比较.

主要成果:

  • 该THz系统提供了可用的运动和呼吸信号.
  • 对一些受试者来说,来自心电图的呼吸表现低于最佳.
  • 基于THz的呼吸估计实现了1.40 BPM的根平均平方误差.
  • 在THz测量和协议之间观察到良好的一致性.

结论:

  • 太赫兹光谱是一种可行的,准确的方法,用于非接触式呼吸监测.
  • 这种THz系统在呼吸评估的可靠性方面超过了ECG.
  • THz技术为呼吸道监测应用提供了一个有前途的工具.