Design framework for a gas sensor based on an open photoacoustic resonator

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Abstract

Photoacoustic spectroscopy (PAS) is a well-established methodology for selectively sensing gaseous components. We present a design framework for a PAS sensor concept based on an open path detection geometry. The main purpose of the framework is the optimization of the open sensor geometry in harsh environments regarding flow speed and external noise. A first design study of a NO2 sensor including the technical realization was carried out. Good qualitative agreement of simulation and experiment was achieved, resulting in a theoretical limit of detection for NO2 as low as 5 ppm and providing a valid basis for future design optimizations for a multitude of analytes.

Original languageEnglish
Title of host publicationIEEE Sensors, SENSORS 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Electronic)9781479982875
DOIs
Publication statusPublished - 5 Jan 2017
Event15th IEEE Sensors Conference, SENSORS 2016 - Orlando, United States
Duration: 30 Oct 20162 Nov 2016

Conference

Conference15th IEEE Sensors Conference, SENSORS 2016
CountryUnited States
CityOrlando
Period30/10/162/11/16

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Keywords

  • finite element modeling
  • gas sensing
  • harsh environment
  • open path detection
  • photoacoustic spectroscopy

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Lang, B., & Bergmann, A. (2017). Design framework for a gas sensor based on an open photoacoustic resonator. In IEEE Sensors, SENSORS 2016 - Proceedings [7808433] Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ICSENS.2016.7808433