血氧含量和血流量变化光纤检测系统的研制  

Design of detecting system for transformations of oxyhemoglobin and blood flow based on fiber-optic sensor

作　　者：姚钦[1] 史仪凯[1] 刘霞[1] 王萑[1] 

机构地区：[1]西北工业大学机电学院,陕西西安710072

出　　处：《光学精密工程》2008年第3期375-380,共6页Optics and Precision Engineering

基　　金：国家自然科学基金资助项目(No.50275125);航空科学基金资助项目(No.04I53068)

摘　　要：提出了一种利用内耳血氧含量及血流量变化作为检测参数的测量系统。在波长分别为660 nm和810 nm处,利用氧合血红蛋白和脱氧血红蛋白对近红外光的吸光系数不同的原理,依据朗伯-比尔定律推导出适于测量血氧含量及血流量变化的工程公式,设计的传感器实现了测量内耳组织血氧饱和度和血流量变化两种人体生理信号的采集和转换。该系统通过输送数据到PC机,实时反映二者的关系,实验结果表明,在20%~100%血氧饱和度范围内,测量精度为3%,从而为人体眩晕判断提供了较有力的理论依据。A detecting system for the transformations of oxyhemoglobin(HbO2) and blood flow of inner ear was presented for the research of motion sickness.Based on the different absorption parameters of HbO2 and deoxyhemoglobin(Hb) in a near infrared spectroscopy(NIRS) at the wavelengths of 660 nm and 810 nm,a set of engineering formulae were derived for detecting HbO2 and blood flow by Lambert-Beer Law.A new sensor was developed to detect and transform two kinds of human physiology parameters:blood oxygen saturation ...

关 键 词：血氧饱和度 血流量 光纤传感器 近红外光谱 血红蛋白 

分 类 号：TH776[机械工程—仪器科学与技术]