★A pulse oximeter measures the oxygen saturation in the bloodstream. Since blood oxygen saturation can reflect early problems such as heart and lungs, this reading is very useful as a general health monitoring indicator.
★Its working principle is based on the light-absorbing properties of hemoglobin in the blood. Oxyhemoglobin absorbs more infrared light than red light, while deoxyhemoglobin absorbs more red light than infrared light. Therefore, the red and infrared LEDs in the oximeter alternately emit light, and the photodiodes receive the light signal that is not absorbed. The ratio of red and infrared light received by the photodiode is used to calculate the percentage of oxygen in the blood.
★According to the pulsatile nature of the arterial blood flow, the pulse rate and intensity are also determined and displayed during the measurement.
وصف
Feature:
Tiny 14mm x 14mm / 0.55in x 0.55in Board Size
Low Power
Device Drivers
Free Algorithm
Example C Source Code For mbed Platforms
Test Data
Competitive Advantages
Highly-integrated, small-size sensor
Non-chest based heart-rate/SpO2 detection
Ultra-low power consumption