A multi-wavelength opacimeter for NOX and soot

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


A novel method to simultaneously determine the concentration of particles and NO2, the main pollutants in the exhaust of diesel engines, is presented. It is based on multi-wavelength extinction measurement followed by a mathematical inversion algorithm. This paper gives an overview of the extinction measurement in general and extends the principle to a multi-wavelength measurement setup. The applicability of this new method is derived and validated with first experimental results as well as with simulations.

Original languageEnglish
Title of host publication2015 9th International Conference on Sensing Technology, ICST 2015
PublisherIEEE Computer Society
Number of pages6
ISBN (Electronic)9781479963140
Publication statusPublished - 21 Mar 2016
Event9th International Conference on Sensing Technology: ICST 2015 - Auckland, New Zealand
Duration: 8 Dec 201510 Dec 2015


Conference9th International Conference on Sensing Technology
Country/TerritoryNew Zealand


  • diesel particles
  • light extinction
  • multi-wavelength measurement
  • nitrogen dioxide
  • opacimeter

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Science Applications
  • Signal Processing
  • Electrical and Electronic Engineering

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