An approach to validate the design and fabrication of dielectric elastomer tactile sensor

Presentation


Zhu, Yuting, Tairych, Andreas, Rosset, Samuel and Anderson, Iain A.. 2019. "An approach to validate the design and fabrication of dielectric elastomer tactile sensor." SPIE Smart Structures + Nondestructive Evaluation 2019. Colorado, United States 04 - 07 Mar 2019 United States. SPIE. https://doi.org/10.1117/12.2515283
Paper/Presentation Title

An approach to validate the design and fabrication of dielectric elastomer tactile sensor

Presentation TypePresentation
AuthorsZhu, Yuting, Tairych, Andreas, Rosset, Samuel and Anderson, Iain A.
Journal or Proceedings TitleProceedings of SPIE (International Society for Optical Engineering)
Journal Citation10966
Number of Pages7
Year2019
PublisherSPIE
Place of PublicationUnited States
ISSN0277-786X
ISBN9781510625877
9781510625884
Digital Object Identifier (DOI)https://doi.org/10.1117/12.2515283
Web Address (URL) of Paperhttps://www.spiedigitallibrary.org/conference-proceedings-of-spie/10966/2515283/An-approach-to-validate-the-design-and-fabrication-of-dielectric/10.1117/12.2515283.short?SSO=1
Web Address (URL) of Conference Proceedingshttps://www.spiedigitallibrary.org/conference-proceedings-of-spie/10966.toc#FrontMatterVolume10966
Conference/EventSPIE Smart Structures + Nondestructive Evaluation 2019
Event Details
SPIE Smart Structures + Nondestructive Evaluation 2019
Delivery
In person
Event Date
04 to end of 07 Mar 2019
Event Location
Colorado, United States
Abstract

We present an approach for evaluating the design of Dielectric Elastomer (DE) capacitive pressure sensors on robotic graspers. This approach has used the ANSYS software for Finite Element Method (FEM), along with a MatLab script for calculation of capacitance change. The model has been set up with an axisymmetric indenter and frictionless contact. This study has compared several structured dielectric elastomer (DE) pressure sensors with different sub-surface soft padding thicknesses. The results suggest that: -For padding that is too thin the contact area will be small with localized compression and sensor sensitivity will be compromised by this; -For padding that is very thick compared with the sensor thickness –deformation will be spread over a wider area and the signal sensitivity will be somewhat lower; for a given indenter radius of curvature; -This suggests that there will be an optimal padding thickness for a given contact geometry. The approach developed and presented in the paper will be helpful for sensor soft sensor design for different applications, such as robotics and bio-instrumentational systems, in particular, the design of graspers to identify and pick up different objects.

Keywordsdielectric elastomers; capacitive sensing; padding; Finite Element Method
ANZSRC Field of Research 2020400303. Biomechanical engineering
Public Notes

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Byline AffiliationsUniversity of Auckland, New Zealand
Centre for Health Research
Centre for Future Materials
StretchSense, New Zealand
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