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"In the future, we hope to further develop software robots incorporating liquid metal that can be used in special missions such as search and rescue of earthquake victims, as they can change shape to slide under doors or to cross spaces inaccessible to humans in ".
Stanford Chemical Engineer, Zhenan Bao, PhD, has been working for decades on the development of an electronic skin that can provide prosthetic or robotic hands with a sense of touch and manual human dexterity.
"This technology puts us on the road to one day to give robots the kind of detection capabilities found in human skin," Bao said. We can also determine the direction of the pressure.
This is crucial for handling the objects with skill, and a robot using the glove will also be able to hold an egg between the thumb and the index without breaking it. The glove imitates how skin layers of the human hand work together to make them sensitive to pressure. Our fingers and palms are particularly rich in tactile sensors. This microscopic terrain is used to measure the intensity of the pressure.
These bumps are critical. A light touch is felt mainly by the sensors near the vertices.
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The bumps in this layer feel the pressure when the outer skin exerts pressure on it. This embossed underlayer also helps to reveal the direction of pressure, or shear force.
Postdoctoral fellows Clémentine Boutry and Marc Negre, a master's student, have developed a similar system in electronic glove sensors. The researchers placed a grid of power lines on each of the two facing surfaces, like lines in a field, and rotated these lines perpendicularly to create a dense network of small detection pixels.
The centrally located rubber insulator simply separated the top and bottom layers of the electrodes. When a robot presses on an object, the stored energy increases and allows him to gently touch the objects.
The latest achievement of his team is a rubber glove with sensors attached to the fingertips. Ultimately, the goal is to integrate sensors directly into a skin type coating for robotic hands. One experiment involved the robotic hand wearing gloves gently touching a bay, while another experiment lifted it up and moved a ping-pong ball. As the video shows, a ping pong ball can gently come in and out of the holes without crushing it.
A new generation of robots with humanoid hands capable of performing delicate tasks such as picking berries has been made possible thanks to a technological breakthrough achieved by scientists at Stanford University.
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