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Polymers
Volume 14
Issue 4
10.3390/polym14040834
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Article

Tactile Sensing Using Magnetic Foam

by
Gildas Diguet
1,2,*,
Joerg Froemel
1,2,
Masanori Muroyama
1,3,4 and
Koichi Ohtaka
5
1
Division for the Establishment of Frontier Sciences, Organization for Advanced Studies, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
2
Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
3
Department of Robotics, Graduate School of Engineering, Tohoku University, 6-6-01, Aza Aoba, Aramaki Aoba-ku, Sendai 980-8579, Japan
4
Department of Electrical and Electronic Engineering, Faculty of Engineering, Tohoku Institute of Technology, Yagiyama Kasumi-cho 35-1, Taihaku-ku, Sendai 982-8577, Japan
5
Micro System Integration Center, Tohoku University, 519-1176 Aza Aoba, Aramaki Aoba-ku, Sendai 980-0845, Japan
*
Author to whom correspondence should be addressed.
Polymers 2022, 14(4), 834; https://doi.org/10.3390/polym14040834
Submission received: 11 January 2022 / Revised: 16 February 2022 / Accepted: 18 February 2022 / Published: 21 February 2022
(This article belongs to the Special Issue Electrical and Magnetic Properties of Polymers and Polymer Composites)
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Abstract

For biomedical applications, smart materials that are used as sensors or actuators have to match some criteria, especially bio-compatibility and softness. Smart polymers are candidates that fulfill these two criteria. A sensitivity to compression is created by adding magnetic particles to a compressible foam polymer. A foam-based composite is fabricated for its small Poisson’s ratio, which enables significant compression, up to 50%. This large compression induces a change in its magnetic properties, which can be detected using coils. By setting the sensing coils as a compact array of 3 × 3, the sensor successfully detected and localized an applied deformation.
Keywords: magnetic composite; deformation sensors; artificial skin magnetic composite; deformation sensors; artificial skin
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MDPI and ACS Style

Diguet, G.; Froemel, J.; Muroyama, M.; Ohtaka, K. Tactile Sensing Using Magnetic Foam. Polymers 2022, 14, 834. https://doi.org/10.3390/polym14040834

AMA Style

Diguet G, Froemel J, Muroyama M, Ohtaka K. Tactile Sensing Using Magnetic Foam. Polymers. 2022; 14(4):834. https://doi.org/10.3390/polym14040834

Chicago/Turabian Style

Diguet, Gildas, Joerg Froemel, Masanori Muroyama, and Koichi Ohtaka. 2022. "Tactile Sensing Using Magnetic Foam" Polymers 14, no. 4: 834. https://doi.org/10.3390/polym14040834

APA Style

Diguet, G., Froemel, J., Muroyama, M., & Ohtaka, K. (2022). Tactile Sensing Using Magnetic Foam. Polymers, 14(4), 834. https://doi.org/10.3390/polym14040834

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