Nonlinear model of current and voltage for carbon nanotube yarns

Carbon nanotube yarns have extremely high flexibility and tensile resistance, as well as excellent conductivity and thermal conductivity, making them widely used in fields such as textiles, electronic devices, medical devices, aerospace, and more. The electrical characteristics is important for the application of carbon nanotube yarns. Thus, the relationship between the current and voltage of carbon nanotube yarns is analyzed by experimental research in the paper. Based on the experimental results, a backlash model is used to describe this relationship, and the parameters of backlash model are identified using the batch least squares method. Finally, the experimental results show that the established model can well describe this nonlinear relationship of carbon nanotube yarns.