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07-23-2015, 02:04 AM
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Powered Robotic Arm Uses Shape Memory Alloy Instead of Motors
Powered Robotic Arm Uses Shape Memory Alloy Instead of Motors
[IMG]http://cdn.medgadget.com/wp-content/uploads/2015/07/niti**l-prosthesis.png[/IMG]Powered prosthetic arms typically rely on a ****** of motors, pulleys, and other mechanical contraptions to make them move. These can be heavy and introduce a lot of complexity to the system. **w engineers from*Saarland University in Germany have created a bionic hand that doesn’t have any complex components, relying simply on niti**l wires activated by a current of electricity. Niti**l, a nickel titanium Alloy developed at the Naval Ordnance Laboratory, is a Shape Memory material that can bounce between two configurations depending on its temperature. By running a current through the metal, the wires can heat up and made to flex. The research team harnessed this property and built the wires into a plastic arm to work as tiny muscles that can tug and pull individual fingers to open and close. Here’s a Reuters report about the tech**logy More at Reuters:*Bionic hand uses smart wires to mimic muscle fibers… The post Powered Robotic Arm Uses Shape Memory Alloy Instead of Motors appeared first on Medgadget. ??????? ??????: Powered Robotic Arm Uses Shape Memory Alloy Instead of Motors || ??????: rss || ??????: اسم منتداك
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