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research article

Joint entropy-based morphology optimization of soft strain sensor networks for functional robustness

Thuruthel, Thomas George
•
Hughes, Josie  
•
Iida, Fumiya
2020
IEEE Sensors Journal

Dense and distributed tactile sensors are critical for robots to achieve human-like manipulation skills. Soft robotic sensors are a potential technological solution to obtain the required high dimensional sensory information unobtrusively. However, the design of this new class of sensors is still based on human intuition or derived from traditional flex sensors. This work is a first step towards automated design of soft sensor morphologies based on optimization of information theory metrics and machine learning. Elementary simulation models are used to develop the optimized sensor morphologies that are more accurate and robust with the same number of sensors. Same configurations are replicated experimentally to validate the feasibility of such an approach for practical applications. Furthermore, we present a novel technique for drift compensation in soft strain sensors that allows us to obtain accurate contact localization. This work is an effort towards transferring the paradigm of morphological computation from soft actuator designing to soft sensor designing for high performance, resilient tactile sensory networks. © 2020 IEEE.

  • Details
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Type
research article
DOI
10.1109/JSEN.2020.2995237
Author(s)
Thuruthel, Thomas George
Hughes, Josie  
Iida, Fumiya
Date Issued

2020

Publisher

Institute of Electrical and Electronics Engineers Inc.

Published in
IEEE Sensors Journal
Volume

20

Issue

18

Start page

10801

End page

10810

Subjects

Engineering, Electrical & Electronic

•

Instruments & Instrumentation

•

Physics, Applied

•

Information theory

•

Morphology

•

Sensor networks

•

Automated design

•

Contact localization

•

Distributed tactile sensor

•

Drift compensation

•

Morphological computation

•

Optimized sensors

•

Sensory information

•

Technological solution

•

Computation theory

Note

This work was supported by the SHERO Project, a Future and Emerging Technologies (FET) Programme of the European Commission under Grant 828818.

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
CREATE-LAB  
Available on Infoscience
August 9, 2022
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/189868
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