Powered Robotic Arm Uses Shape Memory Alloy Instead Of Motors, Saarland University Reveals

Powered prosthetic arms typically rely on a series of motors, pulleys, and other mechanical contraptions to make them move. These can be heavy and introduce a lot of complexity to the system. Now engineers from Saarland University in Germany have created a bionic hand that doesn’t have any complex components, relying simply on nitinol wires activated by a current of electricity.

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