Design News is part of the Informa Markets Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Gadget Freak Case #258: Memory Wire Muscles Actuate Biped

Gadget Freak Case #258: Memory Wire Muscles Actuate Biped

The prototype we are going to build shows one application of memory wire muscles. They are actuators, like stepper motors or servos, that can be much lighter, have a more organic movement, and are silent. Though they have some drawbacks (typically, their torque is not very high, and the typical on/off cycle is about one second), they are interesting actuators, and it is supposed that, in the not so distant future, they will be able to build artificial muscles with strength similar to their organic counterparts.

Shape memory alloys (SMAs) are metals that change shape when heated over their activation temperature. They are malleable when cool, but when heated, they change shape and return to their default shape, which can be set by heating the wire far over its activation temperature.

Do you have a Gadget Freak project you would like the world to see? Send a brief description of your gadget and a photo to Assistant Managing Editor Lauren Muskett.

Click here to view Table 1.

Click here to view Table 2.

{videoembed|273983}

Check out the Best of Gadget Freak -- Volume 2 Technology Roundup to see some of the best gadgets that your peers have created.

When you are finished, be sure to check out Best of Gadget Freak: Vol. 1.

Hide comments
account-default-image

Comments

  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.
Publish