Robotic finger sweats to cool

Researchers have developed an appendage that can later be used as a full-fledged

robotic finger. The device releases fluid in order to stop overheating. Soft robots with this technology can work in a warm environment or with hot objects without failing.

Fingers can bend and unbend in orderto grab items. The back of the finger is made of resin. It is also equipped with microscopic pores that do not allow water to pass below 30 ° C. However, at higher temperatures, the expanding resin opens the pores, allowing water to escape.

“The best part of our method isthat the thermoregulatory characteristics are inherent in the material itself, ”said John Wallin, a researcher who participated in the development. “We don’t need to add sensors or other components to control the intensity of perspiration.”

Evaporation of water helps devices cool downabout six times faster. In some cases, robots lower their temperature even faster than a horse or a person. Scientists conducted several experiments, capturing hot objects with both fingers of both normal and irregular shapes, demonstrating the adaptability and cooling ability of the devices.

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