Recently, the Hefei Institute of Intelligent Machinery and Hefei University of Technology jointly developed a new type of "artificial skin", which is the first robot tactile sensor for monitoring "three-dimensional force" developed in China. What are the advantages of this skin? In what ways can it be applied?
The so-called "artificial skin" that can detect three-dimensional forces means that it can detect specific force points and forces in three directions in real time. It includes not only vertical pressure but also lateral friction. It comprehensively applies materials science, nanotechnology, sensing technology and artificial intelligence theory.
"'Artificial skin' is a kind of 'skin' used in intelligent robots. It can provide tactile information to robots. It is a skin-like array tactile sensor that can sense the force information exerted on the 'skin' by the outside world. Ge Yunjian, a researcher at the Hefei Institute of Intelligent Machinery of the Chinese Academy of Sciences, said, "The reason why the" artificial skin "we have developed is extraordinary is that it can continuously detect force information from multiple directions acting on its surface."
"Unlike the previous generation of robotic" artificial skin ", the previous robotic skin may only detect one-dimensional forces, that is, forces from one direction. To achieve the detection of three-dimensional forces," artificial skin "is composed of individual sensors The unit is attached to a flexible material, just like the armor worn by ancient soldiers, each sensor unit is not flexible, nor can it achieve complete continuous measurement. The new 'artificial skin' introduced this time has no separate The sensor unit, the sensor array is a whole, just like the sponge on the table tennis racket and the tire of the car, the whole is very soft, can be twisted and stretched to break the defect of the "armor" type sensor array For example, it is like a sponge on a ping pong racket and a tire with a car belt. It is a completely new type of three-dimensional flexible array tactile sensor. "Ge Yunjian said.
Ge Yunjian further explained: "The base material of the new" artificial skin "is a newly developed conductive adhesive that can be flow-formed. The manufacturing process is like pouring a prefabricated slab for building a house, first building a steel skeleton, and then pouring cement And the sand makes it a whole, 'artificial skin' is to arrange the grid-like conductive nodes on the upper and lower two layers, and the new conductive glue is poured in the middle. "
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