基于MSP430F149的血氧饱和度检测仪

The Oximeter Based on MSP430F149 Microprocessor

本文根据红光和红外光透过手指动脉血管后的相对最大光强和光强的最大变化量之比来计算血氧饱和度的一般原理推导出实用的计算方法,并结合MSP430F149微处理器低功耗优势,以及丰富的外围资源研制设计的可控增益放大器等,有效地克服了由于个人生理差异而引起的测量信号基线漂移,满足了仪器便携化设计的需求。

By computing the ratio of the light intensity and variation of light intensity of red light and infrared light, it is easy to compute the oxygen saturation of blood. The gain controllable designed on the basis of the predominance of low power and abundant peripheral module of MSP 430 F 149 can conquer the deviation of baseline of the signal that is introduced by physiology contrast of individual.