Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. All‐Fabric Wearable Electroadhesive Clutch
 
research article

All‐Fabric Wearable Electroadhesive Clutch

Ramachandran, Vivek  
•
Shintake, Jun  
•
Floreano, Dario  
October 23, 2018
Advanced Materials Technologies

A lightweight, textile fabricated, haptic device consisting of an electrostatic adhesive clutch is introduced, which can constrain body movement when activated at low power (≈1 mW). The clutch electrodes are composite structures, prepared by coating copper‐plated polyester fabric with thin films of high‐κ dielectric ink. When voltage is applied across a pair of overlapping electrodes, the charge separation created between the overlapped surfaces gives rise to adhesive forces that resist tensile loads along the electrode surface. The clutch is arranged in parallel with a sheet of knitted fabric, which exhibits low‐stiffness spring‐like characteristics, thus decreasing load resistance when the clutch is deactivated. Mechanical tests are carried out to assess the dependency on scaling and loading rate at different voltages. The load‐bearing capacity of the device is experimentally shown to sustain a 10 kg load for a clutch pair with 120 × 70 mm2 dielectric overlap, when activated at 400 V. Current‐dependent charging and discharging times that can be as low as 15 ms are presented. To exemplify its pertinence in wearable applications, the device is used as an elbow joint constraint, exhibiting its conformability to curvatures and suitability for skin‐mounted applications.

  • Files
  • Details
  • Metrics
Loading...
Thumbnail Image
Name

All-Fabric Electroadhesive Clutch.pdf

Type

Preprint

Version

Submitted version (Preprint)

Access type

openaccess

Size

7.55 MB

Format

Adobe PDF

Checksum (MD5)

9c4eab8c687c909a43c729e47573f651

Loading...
Thumbnail Image
Name

Video 1.mp4

Type

Preprint

Version

Submitted version (Preprint)

Access type

openaccess

Size

10.98 MB

Format

Video MP4

Checksum (MD5)

c4a57d7754a4f5a2fc0f66579c336156

Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés