Sensor IC monitors heart rate and blood oxygen
Measuring only 4.7×2.5×0.9mm, the tiny BioMon optoelectronic sensor is expected to facilitate further innovation in the area of wireless health monitoring equipment and fitness tracking devices. BioMon is currently available in three variants, each of which is available mounted on a reference design board that will enable early stage development and prototyping.
The heart rate and oxygen level monitoring is achieved through the transmission and detection of green and red light. Green light transmitters are used for pulse rate measurement at the wrist, whereas red or infrared emitters are used for pulse rate measurement on the finger, as they can also measure the oxygen content of the blood (pulse oximetry). In combination with a photodiode, the infrared LED can also be used as a proximity sensor.
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