Japan develops new sensor system to measure heart rate

Researchers at the University of Hiroshima in Japan have developed a new sensor system that detects the heart rate by amplifying the heart rate from the skin's back surface.

>>> Sen.se home monitoring system

Photo: Vietnamplus

According to lead researcher Professor Tsuji Toshio, the system uses an oscillator to detect tiny vibration signals emitted when the heart beats the muscles and bones on the back.

This sensor is wrapped in 2cm polyester fabric to filter out high frequency noise such as the voice and vibration of moving vehicles.

In addition, microphones in the sensor system can transfer the signals generated by the oscillator to the heart - the sound produced when the heart beats and pumps blood to organs in the body. Therefore, even if no sensor is attached to the body, the system can record average heart rate by electrocardiogram.

Seats in cars equipped with this sensor system can provide early warning, helping to prevent accidents caused by drowsy driving or accidents.