...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Japanese journal of applied physics >A method for the non-contact measurement of two-dimensional displacement of chest surface by breathing and heartbeat using an airborne ultrasound
【24h】

A method for the non-contact measurement of two-dimensional displacement of chest surface by breathing and heartbeat using an airborne ultrasound

机译：一种使用空气超声波呼吸和心跳通过呼吸和心跳的非接触测量胸部二维位移的方法

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Vital-signs measurement systems, which have sensors that are brought into contact with or close to the body, are used for many applications. However, these systems are not suitable in some cases, namely when continuous monitoring is required or a subject cannot wear sensors. We have studied non-contact measurement of respiration and heart rate using an airborne ultrasound. In the proposed method, an M-sequence modulated ultrasound is transmitted to the chest of the subject, then the received signal is correlated with the transmitted M-sequence to detect the reflected echo with high signal-to-noise ratio. The time of flight (TOF) of the reflected echo indicates the distance to the chest surface. Therefore, the chest displacement due to breathing and heartbeat can be measured from the variation of TOFs. In this paper, the proposed measurement is demonstrated for subjects in a supine position without clothes. In the experiment, two cross-correlation functions were obtained by using one loudspeaker and two microphones to form the airborne B-mode image. Two-dimensional displacement of the chest surface due to breathing and heartbeat could be measured from the variation of airborne B-mode images. (C) 2019 The Japan Society of Applied Physics
机译：重要标志测量系统，其具有与身体接触或接近体内的传感器，用于许多应用。然而，在某些情况下，这些系统不适合，即当需要连续监测或受试者不能磨损传感器时。我们使用空降超声研究了非接触式测量呼吸和心率。在所提出的方法中，将M序列调制的超声波发送到对象的胸部，然后接收信号与发送的M序列相关，以检测具有高信噪比的反射回波。反射回波的飞行时间（TOF）表示与胸部表面的距离。因此，可以从TOF的变异来测量引起的呼吸和心跳引起的胸部位移。在本文中，在没有衣服的仰卧位的受试者上展示了所提出的测量。在实验中，通过使用一个扬声器和两个麦克风来形成两个互相关函数来形成空气传播的B模式图像。可以从空气传播的B模式图像的变化来测量由于呼吸和心跳引起的胸表面的二维位移。 （c）2019年日本应用物理学会

著录项

  • 来源
    《Japanese journal of applied physics》 |2019年第sg期|SGGB10.1-SGGB10.12|共12页
  • 作者

    Hayashi Taiki; Hirata Shinnosuke; Hachiya Hiroyuki;

  • 作者单位

    Tokyo Inst Technol Sch Engn Dept Syst & Control Engn Meguro Ku Tokyo 1528550 Japan;

    Tokyo Inst Technol Sch Engn Dept Syst & Control Engn Meguro Ku Tokyo 1528550 Japan;

    Tokyo Inst Technol Sch Engn Dept Syst & Control Engn Meguro Ku Tokyo 1528550 Japan;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号