Hand-held unit for simultaneous detection of methane and ethane based on NIR-absorption spectroscopy

Oliver Hennig, Rainer Strzoda, Erhard Mágori, Eric Chemisky, Christian Tump, Maximilian Fleischer, Hans Meixner, Ignaz Eisele

Research output: Contribution to journalConference article

29 Citations (Scopus)


The characteristic NIR-absorption lines of methane and ethane are being acquired simultaneously and their concentrations are determined using a tunable DFB laser diode. This paper reports on the development of a hand-held and low-power sensor, based on direct absorption spectroscopy for leak detection (methane), natural gas identification and lower-explosion-limit (LEL) measurements (methane and ethane). The algorithm corrects for ambient temperature and pressure. At normal conditions and constant operation a battery-lifetime of 8+h is achieved.

Original languageEnglish
Pages (from-to)151-156
Number of pages6
JournalSensors and Actuators, B: Chemical
Issue number1-3
Publication statusPublished - Oct 15 2003
EventSelected Papers from Eurosensors XVI - Prague, Czech Republic
Duration: Sep 15 2002Sep 18 2002


  • Absorption
  • NIR-spectroscopy
  • Tunable diode laser

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Hand-held unit for simultaneous detection of methane and ethane based on NIR-absorption spectroscopy'. Together they form a unique fingerprint.

  • Cite this