基于DSP脉搏血氧饱和度测量仪课程设计.doc

毕 业论 文 题 目： 基于DSP的脉搏血氧饱和度测量仪的设计 基于DSP的脉搏血氧饱和度测量仪的设计 【摘要】新陈代谢是生物体内全部有序化学变化的总称。它包括物质代谢和能量代谢两个方面。能量代谢是指生物体与外界环境之间能量的交换。人体的能量代谢分为有氧代谢和无氧代谢，其中有氧代谢是主体。血氧饱和度是指动脉血中与氧结合的氧合血红蛋白的容量占全部可结合的血红蛋白容量的百分比. 传统的血氧饱和度测量方法是对人体采血,再利用血气分析仪进行电化学分析,测出氧分压,计算血氧饱和度. 这种方法虽然精确,但操作繁琐,且不能进行连续的监测.衡量氧气在血液中浓度的指标是动脉血氧饱和度。脉搏血氧测量仪是目前测量动脉血氧饱和度最有效的设备之一。数字信号处理技术简称DSP，它是一门与许多学科相关而又广泛应用于许多领域的新兴学科。本文利用了数字信号处理技术以芯片为核心处理单元实现了脉搏血氧饱和度的测量，可以有效地实现复杂背景下血氧饱和度的准确检测。 【关键词】血氧饱和度 数字信号处理（DSP） 脉搏血氧测量仪特性  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 in