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    <title>健康信息 on 心电资讯  --  知识铺</title>
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      <title>光电容积脉搏波 (PPG) 的原理、波形及用途</title>
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      <description>摘要：光电容积脉搏波 (PPG) 是一种简单且廉价的光学测量方法，通常用于心率监测目的。PPG 是一种非侵入性技术，它使用皮肤表面的光源和光电探测器来测量血液循环的体积变化。最近，除了心率估计和脉搏血氧计读数之外，全球众多研究人员对从 PPG 信号中提取更多有价值的信息产生了浓厚的兴趣。PPG 信号的二</description>
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