Batch Fabrication of Customizable Silicone-Textile Composite Capacitive Strain Sensors for Human Motion Tracking

Asli Atalay, Vanessa Sanchez, Ozgur Atalay, Daniel M. Vogt, Florian Haufe, Robert J. Wood, Conor J. Walsh*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

314 Citations (Scopus)

Abstract

This paper presents design and batch manufacturing of a highly stretchable textile-silicone capacitive sensor to be used in human articulation detection, soft robotics, and exoskeletons. The proposed sensor is made of conductive knit fabric as electrode and silicone elastomer as dielectric. The batch manufacturing technology enables production of large sensor mat and arbitrary shaping of sensors, which is precisely achieved via laser cutting of the sensor mat. Individual capacitive sensors exhibit high linearity, low hysteresis, and a gauge factor of 1.23. Compliant, low-profile, and robust electrical connections are established by fusing filaments of micro coaxial cable to conductive fabric electrodes of the sensor with thermoplastic film. The capacitive sensors are integrated on a reconstructed glove for monitoring finger motions.

Original languageEnglish
Article number1700136
JournalAdvanced Materials Technologies
Volume2
Issue number9
DOIs
Publication statusPublished - Sept 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Funding

This material is based upon the work supported by the National Science Foundation (Grant No. CBET-1454472), the Scientific and Technological Research Council of Turkey (TUBİTAK) BIDEB-2219 Postdoctoral Research program, the Defense Advanced Research Projects Agency (DARPA), Warrior Web Program (Contract No. W911NF-14-C-0051), the Wyss Institute, and the John A. Paulson School of Engineering and Applied Sciences at Harvard University. The authors would also like to thank James Weaver for SEM images.

FundersFunder number
John A. Paulson School of Engineering and Applied Sciences at Harvard University
TUBİTAK
Warrior Web Program
National Science FoundationCBET-1454472
Defense Advanced Research Projects AgencyW911NF-14-C-0051
Harvard University
Intelligence Community Postdoctoral Research Fellowship Program
Hansjörg Wyss Institute for Biologically Inspired Engineering, Harvard University
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu

    Keywords

    • capacitive
    • motion tracking
    • soft sensors
    • stretchable
    • textile-based sensors

    Fingerprint

    Dive into the research topics of 'Batch Fabrication of Customizable Silicone-Textile Composite Capacitive Strain Sensors for Human Motion Tracking'. Together they form a unique fingerprint.

    Cite this