摘要
基于笔记本计算机的心音分析仪由心音传感器、心音信号预处理盒、笔记本计算机、打印机、音箱和心音信号处理软件组成。它的开发目的是充分利用笔记本计算机的便携特点和强大功能。该系统在Ｗｉｎｄｏｗｓ９５操作系统下用ＶＩＳＵＡＬＢＡＳＩＣ编程。软件设计中结合了传统的信号处理方法和知识工程技术，使它具有客观的心音量化和分析功能。该系统具有无创性、方便快速，且费用低廉，与其它心血管检查方法有互补作用，可作为临床。
A notebook computer based heart sound analysis instrument, consisting of phonocardiographic sensor, heart sound signal preprocessing box, notebook computer, printer, speakers, and heart sound signal processing software is introduced. The objective of the development was to fully utilize both the portability and powerful functions of notebook computer. The program was developed with Visual Basic 4 0 for Windows 95. The software made use of engineering and technical knowledge, and traditional signal processing methods as well. The instrument has functions of objective and quantitative analysis. The system is non invasive, easy to use, and low cost, and is complementary to other techniques for diagnosing cardiovascular diseases. It is a practical system for clinic, scientific research, and teching.
出处
《北京生物医学工程》
1999年第1期34-38,共5页
Beijing Biomedical Engineering
关键词
心音
信号处理
量化
笔记本计算机
Heart sound
Signal processing
Notebook computer
Quantification
