The authors of the new work have equipped the hand with touch sensors that meet or even exceed
The hand consists of two flexible ribbed fingers, they adapt to the shape of the object they touch. The fingers themselves are made from flexible 3D printed plastic materials.
When touching an object, the finger smoothlyembraces him. By determining exactly how the plastic flexes on the fingers, the camera — built into the hand — can assess an object's overall shape, surface texture, location, and weight.
The device successfully lifted a small screwdriver,plastic strawberries, a tube of acrylic paint, a jar of balloons and a glass of wine. For example, when a hand held a strawberry, an internal sensor was able to detect artificial seeds on its surface. She also grabbed the tube of paint, but didn't squeeze it too hard to avoid spilling the contents.
But glass objects are a difficult task forrobots. So they cannot always perceive them due to the refraction of light. Tactile sensors are immune to such optically ambiguous objects. When the hand lifted the wine glass, it determined the direction of the stem, as well as the top and bottom - this is necessary in order to correctly put the object back. Robohand was able to correctly return the glass to its place seven out of 10 times.
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