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What does a blood oxygen sensor do?

People breathe air every day, because the air contains oxygen, which is the basis for maintaining people’s lives. The reduced hemoglobin contained in people’s bodies combines with the oxygen ingested in the lungs to form oxygen and hemoglobin. Oxygen is dissolved in plasma to maintain the metabolism of tissue cells. The oxygen sensor can measure the percentage of hemoglobin in the blood of the human body in the whole blood. The following describes the role of the blood oxygen sensor:

The blood oxygen sensor can measure the blood oxygen saturation in people’s body. The blood oxygen saturation refers to the percentage of oxygenated hemoglobin in the blood of people’s blood in the blood. The blood oxygen saturation is an important indicator for measuring the patient. The blood oxygen sensor is divided into various shapes, namely finger type, earlobe type and forehead adhesion type. Regardless of the shape, the core of the blood oxygen sensor is still the same, which is composed of light-emitting devices and receiving devices. The light-emitting device of the blood oxygen sensor is composed of an infrared light tube, and the photosensitive receiver of the blood oxygen sensor adopts a PIN photosensitive diode, which converts the received incident light signal into an electrical signal, and adopts high technology to make it changeable. When in use, the receiving area becomes larger, the sensitivity is high, the dark current is small, and the noise is low. The driving method of the blood oxygen sensor actually uses two light-emitting diodes and a photosensitive receiving tube to realize the double-beam measurement method to measure blood oxygen saturation. The use of this pulse driving method can not only improve the instantaneous In addition to reducing energy consumption, it can also prolong the service life of the period. The blood oxygen sensor also adopts the optical measurement method, which is a continuous and non-destructive blood oxygen measurement method, which will not cause any pain and side effects to the human body.

Post time: Jun-08-2022