A highly elastic, capacitive strain gauge based on percolating nanotube networks

Daniel J. Cohen; Debkishore Mitra; Kevin Peterson; Michel M. Maharbiz

doi:10.1021/nl204052z

A highly elastic, capacitive strain gauge based on percolating nanotube networks

Daniel J. Cohen
, Debkishore Mitra
, Kevin Peterson
, Michel M. Maharbiz

Research output: Contribution to journal › Article › peer-review

482 Scopus citations

Abstract

We present a highly elastic strain gauge based on capacitive sensing of parallel, carbon nanotube-based percolation electrodes separated by a dielectric elastomer. The fabrication, relying on vacuum filtration of single-walled carbon nanotubes and hydrophobic patterning of silicone, is both rapid and inexpensive. We demonstrate reliable, linear performance over thousands of cycles at up to 100% strain with less than 3% variability and the highest reported gauge factor for a device of this class (0.99). We further demonstrate use of this sensor in a robotics context to transduce joint angles.

Original language	English (US)
Pages (from-to)	1821-1825
Number of pages	5
Journal	Nano Letters
Volume	12
Issue number	4
DOIs	https://doi.org/10.1021/nl204052z
State	Published - Apr 11 2012
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemistry
Condensed Matter Physics
Mechanical Engineering
Bioengineering
General Materials Science

Keywords

Nanotubes
elastomer
percolation
sensor
strain

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10.1021/nl204052z

Cite this

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abstract = "We present a highly elastic strain gauge based on capacitive sensing of parallel, carbon nanotube-based percolation electrodes separated by a dielectric elastomer. The fabrication, relying on vacuum filtration of single-walled carbon nanotubes and hydrophobic patterning of silicone, is both rapid and inexpensive. We demonstrate reliable, linear performance over thousands of cycles at up to 100\% strain with less than 3\% variability and the highest reported gauge factor for a device of this class (0.99). We further demonstrate use of this sensor in a robotics context to transduce joint angles.",

keywords = "Nanotubes, elastomer, percolation, sensor, strain",

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doi = "10.1021/nl204052z",

language = "English (US)",

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AU - Cohen, Daniel J.

AU - Mitra, Debkishore

AU - Peterson, Kevin

AU - Maharbiz, Michel M.

PY - 2012/4/11

Y1 - 2012/4/11

N2 - We present a highly elastic strain gauge based on capacitive sensing of parallel, carbon nanotube-based percolation electrodes separated by a dielectric elastomer. The fabrication, relying on vacuum filtration of single-walled carbon nanotubes and hydrophobic patterning of silicone, is both rapid and inexpensive. We demonstrate reliable, linear performance over thousands of cycles at up to 100% strain with less than 3% variability and the highest reported gauge factor for a device of this class (0.99). We further demonstrate use of this sensor in a robotics context to transduce joint angles.

AB - We present a highly elastic strain gauge based on capacitive sensing of parallel, carbon nanotube-based percolation electrodes separated by a dielectric elastomer. The fabrication, relying on vacuum filtration of single-walled carbon nanotubes and hydrophobic patterning of silicone, is both rapid and inexpensive. We demonstrate reliable, linear performance over thousands of cycles at up to 100% strain with less than 3% variability and the highest reported gauge factor for a device of this class (0.99). We further demonstrate use of this sensor in a robotics context to transduce joint angles.

KW - Nanotubes

KW - elastomer

KW - percolation

KW - sensor

KW - strain

UR - https://www.scopus.com/pages/publications/84859707215

UR - https://www.scopus.com/pages/publications/84859707215#tab=citedBy

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AN - SCOPUS:84859707215

SN - 1530-6984

VL - 12

SP - 1821

EP - 1825

JO - Nano Letters

JF - Nano Letters

IS - 4

ER -

A highly elastic, capacitive strain gauge based on percolating nanotube networks

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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