| Summary: | 碩士 === 國立交通大學 === 電機與控制工程系所 === 94 === The purpose of this thesis is to develop a non-invasive physiological signal detection by using the Near-Infrared Spectroscopy. In this thesis, we use the different of the wavelength of the LED to replace the optical system, for the reducing of the volume of the measurement system. By developing the related sensing circuits and computational algorithms, we are able to measure human oxyhemoglobin (HbO2), deoxyhemoglobin (Hb) and oxygen saturation (SO2) using the porposed system. One of the direction of the research is for the penetration of the photons. We use the Monte Carlo simulation to simulate the light of the LED which is in the skin organization and discuss the condition of the distribution, the path of the photons and depth. By using the above method, the oxygen saturation of skin tissue also can be compared with the result of the hardware implementation.
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