Shielded stretchable capacitive force sensors with liquid metal channels

Bekir Aksoy; Krishna Manaswi Digumarti; Giulio Grasso; Vito Cacucciolo; Herbert R. Shea

doi:10.1117/12.2661665

28 April 2023 Shielded stretchable capacitive force sensors with liquid metal channels

Bekir Aksoy, Krishna Manaswi Digumarti, Giulio Grasso, Vito Cacucciolo, Herbert R. Shea

Proceedings Volume PC12482, Electroactive Polymer Actuators and Devices (EAPAD) XXV; PC124820I (2023) https://doi.org/10.1117/12.2661665
Event: SPIE Smart Structures + Nondestructive Evaluation, 2023, Long Beach, California, United States

Abstract

We report electrically shielded capacitive stretchable force sensors, that simultaneously measure normal and shear strains, even near electric sparks. The device consists of an outer conductive stretchable shielding layer (carbon-loaded silicone) and a central silicone layer with embedded air channels and three liquid metal electrodes. We report sub-mN force resolution in both normal and shear directions, can measure forces larger than 10 N, and operate reliably after repeated loading to 20 N load. Performance is unaffected by nearby high DC and AC electric fields, allowing use in a wide range of robotic sensing applications.

Conference Presentation

Citation Download Citation

Bekir Aksoy, Krishna Manaswi Digumarti, Giulio Grasso, Vito Cacucciolo, and Herbert R. Shea "Shielded stretchable capacitive force sensors with liquid metal channels", Proc. SPIE PC12482, Electroactive Polymer Actuators and Devices (EAPAD) XXV, PC124820I (28 April 2023); https://doi.org/10.1117/12.2661665

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available