Electronic skin can sense the direction in which it’s being touched




We’ve already seen artificial skin capable of sensing touch and prosthetics that sense texture, but now a group of Korean scientists has come up with a stretchable electronic skin that “feels” in three dimensions. The artificial skin is made from arrays of microscopic domes that interlock and deform when pressed. It can detect the intensity, location, and direction of pressure, whether from an object or a mere gust of wind.

Electronic skin can sense the direction in which it's being touched




The researchers took their cue from the interlocked microstructures found in ridges in human skin, which enhance our body’s perception of stress forces such as shear, strain, vibration, and heat. They mimicked this design with two interlocked carbon nanotube composite films patterned with surface microstructures of hexagonal microdome arrays. These arrays deformed in different patterns depending on the type of force applied, as well as its magnitude and direction.

 

For more detail: Electronic skin can sense the direction in which it’s being touched




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