MEMS近赤外光検出デバイスによる血中酸素飽和度計測の研究

抄録

In this paper, we proposed a measurement method of blood oxygen saturation by using infrared light of 1000 nm. We used an Si MEMS near infrared sensing device. In the experiment, we measured blood oxygen saturation with both visible light and infrared light of 1000 nm wavelength, and blood oxygen saturation can be derived from the result. We found that the blood oxygen saturation value was 87% in both the cases. As a future prospect, we will fix measurement error by aligning the positional relationship of light, photodiode and finger, and consider light scattering in the living body.