A Two-Electrode Structured Planar Positioning Sensor Based on Multi-Walled Carbon Nanotubes

초록

Flexible sensors with rapid response characteristics and precise two-dimensional positioning capabilities hold great potential and play a crucial role in fields such as human-machine interaction and intelligent healthcare. In this study, a helically arranged sensor structure with a tightly interconnected conductive network was fabricated by integrating multi-walled carbon nanotubes with a cotton-thread winding interlocking design. This approach not only simplifies the sensor architecture but also achieves high-precision two-dimensional localization across the sensing plane. The fabricated sensor demonstrates outstanding performance, exhibiting a linearity (R2=0.9977), a fast response time of 64 ms, and excellent cycling stability over 2000 cycles. This work shows significant promise in enhancing human-machine interaction experiences, particularly in entertainment applications such as human-machine Go competitions. © 2025 IEEE.

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