Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2022 Jul 6;12:11398. doi: 10.1038/s41598-022-15682-w

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Fabric muscle fabrication process. (a) To electrically connect the SMA springs, the conductive fabric (50 mm $\times$ 50 mm) is sewn (green dotted lines) and fixed to the cover fabric (both top and bottom fabrics, width 60 mm, height 300 mm). (b) 200 SMA springs are aligned on the cover fabric (bottom fabric). SMA spring legs are arranged above and below the conductive fabric and sewn fixed so that electricity can flow to the SMA springs. (c) Electrical wires are arranged above and below the conductive fabric and sewn fixed to supply external power to the SMA springs. (d) Cover fabrics (both top and bottom) are overlapped so that the conductive fabrics align and then sewn. (e) Conductive fabric part with the SMA spring legs fixed is folded twice and fixed with sewing.