NON-CONTACT MEASURING DEVICES OF PULSE WAVE AND MEASURING DEVICES OF OXYGEN SATURATION AND BLOOD PRESSURE IN USING SAME

摘要

PURPOSE: A non-contact measuring devices of a pulse wave and measuring devices of oxygen saturation and blood pressure in using same are provided to measure the pulse wave of a user without contact the skin of a physical body. CONSTITUTION: A sensing unit(110) is composed of a light emitting unit and a light receiving unit. The light emitting unit emits light from a physical body without direct contact with a skin. The light receiving unit is arranged around the light emitting unit. A signal dividing unit(120) comprises a filter. The filter divides the output of the sensing unit into a pulsation component and a non-pulsation component. A microprocessor(130) monitors the non-pulsation component and compare it with a predetermined DC signal value. If the non-pulsation component is lower than the DC signal, a control signal is generated to increase luminance.