4.3.2 - A Torque Sensor using 3D Printed Conductive TPU
- Event
- EUROSENSORS 2026
2026-09-06 - 2026-09-09
Zurich - Band
- Lectures
- Chapter
- Emerging Sensor Materials
- Author(s)
- T. Stein, M. Schärer, M. Meboldt - ETH Zurich,Zurich (Switzerland)
- Pages
- 144 - 145
- DOI
- 10.5162/eurosensors2026/4.3.2
- ISBN
- 978-3-910600-12-6
- Price
- free
Abstract
A fully 3D printed torque sensor was realized through FDM by embedding a conductive TPU helix inside a PA₁₂ body. Torque loading changes the helical sensing path and causes a resistance increase. The printed devices show an approximately linear response up to 3.5 Nm. Repeated cycling between zero and 1 Nm remains detectable but shows baseline drift. These results demonstrate the potential of fully 3D printed sensors and highlight the main challenges for optimization.