:As important physical health parameters of human body,blood oxygen saturation and pulse have close relationship with cardio-pulmonary,respiratory as well as circulatory system.Concerning blood oxygen saturation,continuous and non-invasive detection can′t be reached by invasive detection technique.By scanning blood volume pulse signal,two laser diodes with different wavelength were used to obtain the absorption difference between oxidized hemoglobin(HbO2) and reduced hemoglobin(Hb).With the result of finger transmission detection,the value of blood oxygen saturation could be calculated.
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刘光达,郭维,朱平,白明明.基于容积波分析的血氧饱和度测量系统[J].激光与红外,2009,39(2):169~172 LIU Guang-da, GUO Wei, ZHU Ping, BAI Ming-ming. Blood Oxygen Saturation Measurement Based on Volume Signal Analysis[J]. LASER & INFRARED,2009,39(2):169~172