Researchers Developed New Ultra-Stretchable Sensor to Interpret Human Motions

Researchers have developed a smart wearable device to monitor and interpret human motions, according to a study conducted on February 22, 2018.

The research which had begun to develop an ultra-stretchable sensor has now developed a smart wearable device that can sense and monitor human motions.

Graphene nano-flakes (GNF) is infused into an adhesive pad to make this sensor. Initially, by stretching the sensor, durability of the sensor was tested. This was done to check the accuracy when it is subjected to strains of up to 350 percent. The electrical stability of the sensor remained the same even when they were subjected to 10,000 cycles of stretching and relaxing.

Homayoun Najjaran, professor said that after vigorous testing of the sensor, it was observed that the functionality of the sensor was retained. Their objective was to develop sensors that are stretchable, flexible and reasonable in size. He also says that sensors should be sensitive so that they can respond to complex human motions, which includes heartbeat, muscle movements and finger gestures. Mina Hoorfar, co-author of the study says that the results obtained in this study will be beneficial for the creation of new health monitoring and biomedical devices.

Hoorfar said, “We have introduced an easy and highly repeatable fabrication method to create a highly sensitive sensor with outstanding mechanical and electrical properties at a very low cost.” Three smart wearable devices, a knee band, a wristband and a glove were built by the researchers to show their practicality. Heartbeats were monitored by the wristband, muscle movements were monitored by the knee bands and finger gestures were monitored by finger bands. An inexpensive device with high sensitivity and selectivity was seen from the results.

This development would increase the growth of wearable sensor market, as detailed in the wearable sensor market report published by Coherent Market Insights.

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