4.3.1 - Bio-sourced Polyester as Substrate for Sustainable Wireless Smart Tags Made by Printing

Event

EUROSENSORS 2026
2026-09-06 - 2026-09-09
Zurich

Band

Lectures

Chapter

Emerging Sensor Materials

Author(s)

J. Bourely, D. Briand - Epfl,Neuchâtel (Switzerland), M. A. Hedou, L. P. Manker, J. S. Luterbacher - Epfl,Lausanne (Switzerland), R. Marti - HEIA-FR Chemtech,Fribourg (Switzerland)

Pages

142 - 143

DOI

10.5162/eurosensors2026/4.3.1

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.