Highly sensitive pressure sensor using two-dimensionally aligned carbon nanotube bundles

Takuya Nozaki, Ken Suzuki, Hideo Miura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A highly sensitive two-dimensional tactile sensor has been developed by applying the stain-induced change of the electronic resistance of MWCNTs (Multi-Wall Carbon Nano-Tubes). The elastic deformation of a bundle of MWCNTs was confirmed under the axial compressive strain from 0% to 60%, and the sensitivity of compressive force was 1 mN. The maximum gauge factor of the bundle under the compressive strain was about 100, and it was obtained from the buckling deformation of the bundle. Since the effective elastic constant of the bundle was about 140 kPa, it was important to use a very soft dielectric material for electrical isolation among areaarrayed fine bundles in the tactile sensor. The application of polydimethylsiloxane (PDMS) was found to be effective for assuring the flexible deformation of each bundle in the sensor under the application of a distributed load.

Original languageEnglish
Title of host publicationMicro- and Nano-Systems Engineering and Packaging
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791857533
DOIs
Publication statusPublished - 2015 Jan 1
EventASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015 - Houston, United States
Duration: 2015 Nov 132015 Nov 19

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume10-2015

Other

OtherASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015
CountryUnited States
CityHouston
Period15/11/1315/11/19

ASJC Scopus subject areas

  • Mechanical Engineering

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