Metrological analysis of an ion current measurement system

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


For small engines in non-automotive powertrains the emissions share is already limited. The introduction and integration of ECU-systems for engine control and dedicated sensors in small engines are required. The ion current sensing technology could be a key enabler for next generation combustion diagnoses and maintenance of small engines. It is an add-on sensing system and aims on gaining knowledge about the combustion process from the ion current signal. In this paper we present an analysis of an ion current sensing system from a metrological point of view. We investigate the impact of the ignition system and the ion current sensing system on the ion current signal and calculate a measurement error. We present a potential parameter to characterize the combustion process independently of the instrumentation. The analysis represents a first approach on how to design robust ion current based ECU control systems.

Original languageEnglish
Title of host publication2021 IEEE Sensors Applications Symposium, SAS 2021 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Electronic)9781728194318
Publication statusPublished - 23 Aug 2021
Event16th IEEE Sensors Applications Symposium: SAS 2021 - Virtual, Sundsvall, Sweden
Duration: 23 Aug 202125 Aug 2021

Publication series

Name2021 IEEE Sensors Applications Symposium, SAS 2021 - Proceedings


Conference16th IEEE Sensors Applications Symposium
CityVirtual, Sundsvall


  • Flame phase
  • Ion current measurement
  • Metrological analysis
  • Small two-stroke engine
  • Spark plug

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Science Applications
  • Computer Vision and Pattern Recognition
  • Instrumentation


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