Insulated Yarn-based Warp-Knitted Capacitive Pressure Sensor for Smart Sportswear
Severin Bernhart, Emanuel Gunnarsson, Benjamin Poredos, Franziska Guth, Burkhard Duemler, Vincent Nierstrasz (2026): Insulated Yarn-based Warp-Knitted Capacitive Pressure Sensor for Smart Sportswear In: 8th International Conference on the Challenges, Opportunities, Innovations and Applications in Electronic Textiles (E-Textiles)
Textile-based sensors enable unobtrusive, large-area biometric monitoring in sports, addressing limitations of rigid wearables by leveraging capacitive, resistive, and other sensing principles for vital monitoring and motion tracking applications. This work presents a warp-knitted capacitive pressure sensor for smart sportswear, using insulated conductive yarns in a fourlayer fabric. The sensor demonstrates a logarithmic pressure-capacitance response (6.55–20.00 pF at approximately 0–70 kPa) and moisture sensitivity (2.23% moisture content increase raises capacitance by 12.6%). Durability tests confirm full functionality after 26 washing cycles and 100 elongation cycles, with hydrophobic treatment preserving water repellency. The design enables scalable, comfortable, and robust pressure sensing for motion monitoring in smart sportswear.
Zertifiziert nach EN ISO 9001