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Sensors 2017, 17(2), 229; doi:10.3390/s17020229

Hysteresis Compensation of Piezoresistive Carbon Nanotube/Polydimethylsiloxane Composite-Based Force Sensors

1
School of Nano & Advanced Material Engineering, Kyungpook National University, Sang-Ju, 37224, Korea
2
Department of Mechanical Engineering, Inha University, Incheon 22212, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 9 November 2016 / Revised: 27 December 2016 / Accepted: 20 January 2017 / Published: 24 January 2017
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [5093 KB, uploaded 24 January 2017]   |  

Abstract

This paper provides a preliminary study on the hysteresis compensation of a piezoresistive silicon-based polymer composite, poly(dimethylsiloxane) dispersed with carbon nanotubes (CNTs), to demonstrate its feasibility as a conductive composite (i.e., a force-sensitive resistor) for force sensors. In this study, the potential use of the nanotube/polydimethylsiloxane (CNT/PDMS) as a force sensor is evaluated for the first time. The experimental results show that the electrical resistance of the CNT/PDMS composite changes in response to sinusoidal loading and static compressive load. The compensated output based on the Duhem hysteresis model shows a linear relationship. This simple hysteresis model can compensate for the nonlinear frequency-dependent hysteresis phenomenon when a dynamic sinusoidal force input is applied. View Full-Text
Keywords: carbon nanotube; polydimethylsiloxane; nanocomposite; piezoresistive effect; hysteresis compensation; force sensor carbon nanotube; polydimethylsiloxane; nanocomposite; piezoresistive effect; hysteresis compensation; force sensor
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Kim, J.-S.; Kim, G.-W. Hysteresis Compensation of Piezoresistive Carbon Nanotube/Polydimethylsiloxane Composite-Based Force Sensors. Sensors 2017, 17, 229.

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