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New sensor system developed to detect heart rate

IANS  |  Tokyo 

Researchers in Japan have developed a new sensor system which could detect the heart rate by amplifying weak pulse signals from the skin surface on the back of the body.

A research group led by Tsuji Toshio, professor of Hiroshima University, unveiled the research results Monday, Xinhua reported. The sensor system uses an oscillator to detect micro-vibration signals that a beating heart sends to muscles and bones on the back.

In addition, the sensor is wrapped with polyester two cm thick to filter high frequency noises such as speaking voice and vibration of running vehicles nearby.

Moreover, the microphone in the sensor system can shift signals detected by the oscillator into heart sounds, which are the noises generated by the beating heart and the resultant flow of blood through it.

Therefore, without the need to be fixed on the body, the sensor system can get heart beat information on par with an electrocardiogram.

Vehicle seats installed with the system can prevent accidents caused by drowsiness or sudden illness of drivers.

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First Published: Wed, September 10 2014. 11:26 IST