MP28 - Enhancing Selectivity Through Fast Heater Cycles with MOx Sensors
- Event
- EUROSENSORS XXXVII
2025-09-07 - 2025-09-10
Wroclaw - Band
- Poster I
- Chapter
- Gas Sensors
- Author(s)
- N. Dennler, J. Sommerhäuser, A. Güntner - ETH Zurich, Zurich (Switzerland)
- Pages
- 259 - 260
- DOI
- 10.5162/EUROSENSORS2025/MP28
- ISBN
- 978-3-910600-07-2
- Price
- free
Abstract
Recent advances in MEMS-based metal-oxide (MOx) gas sensors offer new opportunities for high-speed sensing. Here we demonstrate that ultrafast heater cycling, achieved via precision hardware and feedbackregulation, enables robust classification of odours on sub-second timescales. Phase-aligned feature extraction fromheater-modulated sensor responses yields high classification accuracy, even for brief (20ms) odour pulses. Beyondgeneric sensing, we propose that pairing this thermal modulation scheme with selectively engineered MOx filmsmay enable compact, low-power gas sensors that combine temporal acuity with molecular selectivity.