摘要
该文阐述了如何研制出一种实用的新型数字化的心音信号检测装置,能够实现对人体心音进行定量、准确的捕获和记录。根据心音信号产生的机理和特点,制定本系统设计的目标来确定平台的搭建。系统采用的是接触式的压电薄膜传声器,能够有效地拾取到心音的有效频段,然后对采集的原始信号进行后续的放大、滤波处理,并对该系统进行初步的验证,获得所期望的心音信号。
This article describes how to develop a practical new type of digital heart sound signal detection device that can achieve quantitative and accurate capture of human heart sounds and records. According to the mechanism and characteristics of the heart sound signal, the goal of this system design is to set the platform. The system uses a contact-type piezoelectric film microphone, which can effectively pick up the effective frequency band of the heart sound, then amplify and filter the collected original signal, and perform preliminary verification on the system to obtain the desired heart sound signal.
作者
陈刚
叶继伦
张旭
陈苹
CHEN Gang;YE Jilun;ZHANG Xu;CHEN Ping(Biomedical Engineering Department, School of Medicine, Shenzhen University, Shenzhen , 5180602;Guangdong Key Lab for Biomedical Measurements and Ultrasound Imaging, Shenzhen, 518060;Shenzhen Key Lab for Biomedical Engineering, Shenzhen, 51806)
出处
《中国医疗器械杂志》
2018年第3期182-184,共3页
Chinese Journal of Medical Instrumentation
关键词
数字化
心音信号
系统设计
digitization
heart sound signal
system design
