Wearable non-invasive optical body sensor for measuring personal health vital signs

In this thesis, we report the development and implementation of healthcare sensor devices integrated into a wearable ring device. Using photoplethysmography (PPG) methods, we design a heart rate monitor, a unique method to measure oxygen saturation in the blood and discuss a potentially new method of continuous measurement of blood pressure. In this thesis we also report implementation of a temperature sensor using an LM35 transistor to measure body temperature. A method of integrating electrocardiography into the proposed device is also presented.