7.2.2 - Modelling of Moving Magnet Actuators for Haptic Sensing Applications

Event

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

Band

Lectures

Chapter

Physical Sensors

Author(s)

S. Lang, A. O. Niedermayer, J. Astl, D. Spira, B. Jakoby - Johannes Kepler University Linz,Linz (Austria)

Pages

230 - 231

DOI

10.5162/eurosensors2026/7.2.2

ISBN

978-3-910600-12-6

Price

free

Abstract

This work presents a dual-resonance photoacoustic (PA) gas sensing system that exploits the spectral overlap between resonances of a Helmholtz acoustic cell and a piezoelectric MEMS cantilever to achieve enhanced sensitivity for carbon dioxide detection. The system employs a chopper-based modulation and a distributed feedback (DFB) laser operating near 4225 nm, targeting a strong absorption line of carbon dioxide. Lock-in-based photoacoustic measurements demonstrate a detection resolution of ca. 250 ppb of carbon dioxide in nitrogen at the atmospheric pressure.