Tu-SFM-04 - Fast Tactile Sensor Array Normalization of an Artificial Silicone Fingertip Using a Pressure Chamber

Event

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

Band

Poster

Chapter

Sensor Fundamentals & Modelling

Author(s)

K. Meier, F. Püntener, S. Bielefeldt, C. Hierold, C. Roman - ETH Zürich,Zürich (Switzerland)

Pages

680 - 681

DOI

10.5162/eurosensors2026/Tu-SFM-04

ISBN

978-3-910600-12-6

Price

free

Abstract

We present an approach for normalizing the output of tactile sensor arrays to reduce taxelto-taxel variations due to manufacturing. The method is applied to a soft, artificial fingertip containing 144 integrated capacitive taxels. A pressure chamber applies uniform forces, to all taxels, simultaneously. Two normalization methods are proposed and compared: one based on the maximum taxel capacitance change and another based on a fitted sigmoid function. Both methods reduce taxel spread (coeff. of variation from 0.41 down to 0.23 and 0.085 respectively), improving tactile image uniformity.