【正文】
所占的百分比。當(dāng)血液中氧分壓升高時,血紅蛋白與氧氣結(jié)合,形成氧合血紅蛋白,反之當(dāng)氧氣分壓降低時,形成還原血紅蛋白。人體吸入氧氣,在肺部的肺泡內(nèi)與毛細血管進行氣體交換。Metabolism is in organism the plete 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 parison 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 plex 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 錄引言 1一、緒論 1(一)血氧飽和度的概念及其生理意義 1(二)脈搏血氧飽和度測量儀的發(fā)展歷程 2(三)脈搏血氧飽和度測量儀的發(fā)展現(xiàn)狀與改進方向 2(四)數(shù)字信號處理技術(shù) 3二、脈搏血氧飽和度的測量理論基礎(chǔ) 3(一)脈搏血氧飽和度測量中的光學(xué)理論基礎(chǔ) 3(二)生物組織的基本光學(xué)模型和紅外光譜的技術(shù) 3三、基于的脈搏血氧儀的硬件電路的實現(xiàn) 4(一)系統(tǒng)框圖 4(二)TMS32OFZO6的功能及控制電路分析 5(三)血氧信號的產(chǎn)生及處理過程 5(四)脈搏波信號的處理 61. 基于DSP的脈搏血氧儀硬件電路提取的脈搏波 62. 脈搏波的周期和幅度的計算 63. 微分閥值法的改進 64.采用自相關(guān)函數(shù)法對脈搏波信號的分析 7四、脈搏血氧測量儀的軟件設(shè)計及信號的處理方法 7(一)TMS320F206軟件設(shè)計方法 7(二)基于DSP的脈搏血氧飽和度測量儀的軟件設(shè)計 8結(jié)論 9參考文獻 10致謝 11引言現(xiàn)如今,在醫(yī)院臨床監(jiān)護和日常中老年保健中,脈搏的測量是一項基本的生命指標(biāo),因而脈搏測量是最常見的生命特征的提取,而且氧氣在血液中的濃度具有重要生理意義,所以測量脈搏血氧飽和度就尤為重要,近年來脈搏血氧飽和度測量儀已經(jīng)在臨床實踐中得到了廣泛地應(yīng)用,成為一種不可缺少的臨