论文标题
使用心脏声音作为时间参考的入耳脉冲波速度测量系统
An In-Ear Pulse Wave Velocity Measurement System Using Heart Sounds as Time Reference
论文作者
论文摘要
脉冲波测量提供了医学诊断中的重要信息。因此，开发了用于确定心脏和耳朵之间脉冲波的瞬态时间的测量系统。为了检测由到达脉冲波引起的密封耳管中的压力变化，开发了一个耳朵传感器，它使用心脏声音作为时间参考。此外，为了从压力测量值中提取心脏声音并计算脉冲波瞬态时间，描述了基于MATLAB的算法。提出了一个基于嵌入式微控制器的嵌入式测量板，该测量板实现了传感器和计算机之间的接口进行信号处理。
Pulse wave measurements provide vital information in medical diagnosis. For this reason, a measurement system is developed for determining the transient time of the pulse wave between the heart and the ear. To detect pressure variations in the sealed ear canal, caused by the arriving pulse wave, an in-ear sensor is developed which uses heart sounds as time reference. Furthermore, for extracting the heart sounds from the pressure measurements and calculating the pulse wave transient time, a MATLAB-based algorithm is described. An embedded microcontroller based measurement board is presented, which realizes an interface between the sensor and the computer for signal processing.
