基于dsp的脉搏血氧饱和度测量仪的设计.doc

毕 业论 文 题 目： 基于DSP的脉搏血氧饱和度测量仪的设计 院 系： 专 业： 班 级： 姓 名： 学 号： 指导教师： 2009 年 5 月 2日  The training of lasting learning interest and power for college students in test teaching 【Abstract】Metabolism is in organism the complete order chemical change general name. It includes material metabolism and energy metabolism two aspects. The energy metabolism is refers to between organism and the external environment the energy exchange. Energy metabolism of Human body divide into the oxygen metabolism and the Lack of oxygen metabolism .Main body is the oxygen metabolism. The measurement of oxygen saturation in blood has great significance in clinical and daily health care. This paper first analyses the measurement principle les and methods in detail. On the basis of comparison among various related pulse oxygen saturation in blood instruments, the weight oxygen in the blood the density target is the artery blood oxygen degree of saturation. The pulse blood oxygen measuring instrument is one of present survey artery blood oxygen degree of saturation most effective equipment. The digital signal processing technology is called DSP, it is one related and widely applies with many disciplines in many domain emerging disciplines. This article used the digital signal processing technology to realize the pulse blood oxygen degree of saturation survey take the chip as the core processing unit, might realize the complex background hemorrhaging oxygen degree of saturation accurate examination effectively. 【Key Words】Blood oxygen degree of saturation digital signal processing (DSP) Pulse blood oxygen measuring instrument characteristic目 录 1 一、绪论 1 （一）血氧饱和度的概念及其生理意义 1 （二）脉搏血氧饱和度测量仪的发展历程 2 （三）脉搏血氧饱和度测量仪的发展现状与改进方向 2 （四）数字信号处理技术 3 二、脉搏血氧饱和度的测量理论基础 3 （一）脉搏血氧饱和度测量中的光学理论基础 3 （二）生物组织的基本光学模型和红外光谱的技术 3 三、基于的脉搏血氧仪的硬件电路的实现 4 （一）系统框图 4 （二）TMS32OFZO6的功能及控制电路分析 5 （三）血氧信号的产生及处理过程 5 （四）脉搏波信号的处理 6 1. 基于DSP的脉搏血氧仪硬件电路提取的脉搏波 6 2. 脉搏波的周期和幅度的计算 6 3. 微分阀值法的改进 6 4．采用自相关函数