[3PS-244]
Hierarchical Wool-Decorated Fiber Sensors with Decoupled Multimodal Perception of Strain, Pressure, and Temperature Channels for Next-Generation Smart Textiles
발표자츠어베야르 (한양대학교)
연구책임자이화성 (한양대학교)
Abstract
Hierarchically structured fiber sensors capable of multimodal, decoupled detection of strain, pressure, and temperature are vital for smart textiles but remain difficult to achieve in one design. We report a wool-decorated multimodal fiber sensor (WDMFS) integrating piezoresistive, piezocapacitive, and thermoresistive channels along a coaxial fiber with a silver-embedded polyurethane core, liquid metal shell, and outer Ag‑embedded wool sheath. The Piezoresistive (PR) channel enables nearly hysteresis-free strain sensing up to 110% with stable operation over 2,500 cycles. The Piezocapacitive (PC) channel shows 0.002 kPa−1 sensitivity across 0–100 kPa with millisecond response, while the thermoresistive channel achieves 0.0004 °C−1 sensitivity with linear response from 10–80 °C. Simultaneous PR/PC measurements confirm strain and pressure are decoupled. WDMFS is a promising platform for next-generation wearable electronics and smart textiles.