Uzaktan izlenen invazif olmayan fotopletismografi

Photoplethysmography (PPG) is a very easy and low-price method among the optical measurements techniques which can be used to determine blood volume changes in the microvascular of tissue. It is generally used for determining the important parameters such as heart beat and oxygen level of bloods at the skin surface. The PPG waveform has been used in a vast range of medical devices for measuring oxygen saturation, blood pressure and also detecting peripheral vascular disease.The PPG signal involves two waveforms. First one is AC waveform and second one is DC waveform. AC part consists of the change in the blood volume with each heart beat. DC part consists ofvarious lower frequency components attributed to respiration, sympathetic nervous system activity and thermoregulation.PPG signal are usually accepted providing valuable information about the cardiovascular system. This thesis is prepared for an investigation of non-invasive remote pulse oximetry and photoplethysmography.A device is designed to determine two photoplethysmograph(PPG) signals which are blood oxygen saturation level and blood pressure. Finally, obtained results are compared real values and very close results are observed.