title: Hysteresis Compensation of Piezoresistive Carbon Nanotube/Polydimethylsiloxane Composite-Based Force Sensors.
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.
authors.affiliation: School of Nano & Advanced Material Engineering, Kyungpook National University, Sang-Ju, 37224, Korea. jisikkim@knu.ac.kr.
authors.forename: Ji-Sik
authors.initials: JS
authors.lastname: Kim
authors.affiliation: Department of Mechanical Engineering, Inha University, Incheon 22212, Korea. gwkim@inha.ac.kr.
authors.forename: Gi-Woo
authors.initials: GW
authors.lastname: Kim
keywords: carbon nanotube; force sensor; hysteresis compensation; nanocomposite; piezoresistive effect; polydimethylsiloxane