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Robot with the human touch feels just like us

Lewis Smith
Times Online, UK

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A touch sensor developed to match the sensitivity of the human finger is set to herald the age of the robotic doctor.
Until now robots have been severely handicapped by their inability to feel objects with anything like the accuracy of their human creators. The very best are unable to beat the dexterity of the average six-year-old at tying a shoelace or building a house of cards.
But all that could change with the development by nanotechnologists of a device that can “feel” the shape of a coin down to the detail of the letters stamped on it.
The ability to feel with at least the same degree of sensitivity as a human finger is crucial to the development of robots that can take on complicated tasks such as open heart surgery.
The touch device has been created by researchers in America who used nanoparticles to sense the contours of a coin. It is accurate enough to detect the outline of Abraham Lincoln’s face on a 1c coin and the letters TY in the word Liberty.
Vivek Maheshwari and Ravi Saraf, of the University of Nebraska, say: “Variation in stress distribution caused by the embossing on a 1c coin leads to significant change in local current density.”
The ability to feel an object, whether a coin or a scalpel, would enable robots to improve their ability to grasp items. It would allow them to detect the texture of an item and judge whether it was slipping or being held so firmly that it was being squashed.
June 09, 2006


This post first appeared on Mystery News, The, please read the originial post: here

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