Tu-SAN-07 - Is the initial response of gas sensors enough for gas recognition?

Event

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

Band

Poster

Chapter

Sensor Arrays And Networks, Integrated Systems

Author(s)

Pages

664 - 665

DOI

10.5162/eurosensors2026/Tu-SAN-07

ISBN

978-3-910600-12-6

Price

free

Abstract

This work examines whether early-response features of metal-oxide (MOX) gas sensors enable reliable gas identification without waiting for signal stabilization. Four features are evaluated, the derivative (Dt), relative response (Rs), and area under the curve (AUC), including a truncated version (AUC-20s) using only the first 20 seconds. Using a multilayer perceptron and intrinsic dimensionality analysis on an open dataset of 11 gases across three sensor positions, results show that early features can match or outperform Rs, with AUC-20s performing best for real-time applications.