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Stretchable, Skin-Like Sensor

Using carbon nanotubes bent to act as springs, Stanford University researchers have developed a stretchable, transparent skin-like sensor. The sensor can be stretched to over twice its original length and bounce back perfectly to its original shape. It can sense pressure from a firm pinch to thousands of pounds. The sensor could have applications in prosthetic limbs, robotics, and touch-sensitive computer displays.

Topics:
Displays/Monitors/HMIs Electronics & Computers Implants & Prosthetics Nanotechnology Robotics Sensors

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    Transcript

    00:00:01 [Music] Stanford University this device is an 8x8 array of compressible transparent pressure sensors a capacitor has two conductive parallel plates that when you press on them the distance between the parallel plates gets closer and that has the effect of increasing the capacitance of the device so now I'm pressing and

    00:00:27 releasing pressing again releasing this is what the signal looks like in this work we've exploited the use of spray on carbon nanot tubes Nano tubes are like conductive spaghetti when they're in solution you can spray them like an ink and you can stretch them after this initial stretching then these little Springs can be stretched repeatedly again and again without

    00:00:53 losing the conductivity I'm very excited about this invention If This Were wired I could actually press on it and it would sense not only my touch which an iPhone can do but also the pressure one of the long-term applications is to use a stretchable conformable skin-like device in artificial intelligence systems so if you have a robot like an Android like data from Star Trek his

    00:01:20 skin could potentially be made out of something like this the ultimate dream of this type of research is to restore functionality to Lost skin for amputees for injured soldiers for burn victims that's the ultimate goal of this type of science for more please visit us at stanford.edu