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

454 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

Access to Document

10.1021/nl204052z

Cite this

@article{a9a999babc774f2ca7b5bc60ab77a869,

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

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",

author = "Cohen, {Daniel J.} and Debkishore Mitra and Kevin Peterson and Maharbiz, {Michel M.}",

year = "2012",

month = apr,

day = "11",

doi = "10.1021/nl204052z",

language = "English (US)",

volume = "12",

pages = "1821--1825",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "4",

}

TY - JOUR

T1 - A highly elastic, capacitive strain gauge based on percolating nanotube networks

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 - http://www.scopus.com/inward/record.url?scp=84859707215&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84859707215&partnerID=8YFLogxK

U2 - 10.1021/nl204052z

DO - 10.1021/nl204052z

M3 - Article

C2 - 22409332

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

Access to Document

Other files and links

Fingerprint

Cite this