Accurate sensors offering unrestricted recalibration and long-term stability for determining high temperatures on the basis of gas-sensitive effects of different gases on metal oxides

Josef Gerblinger, Ulrich Heppel, Hans Meixner

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Investigations of the gas sensitivity of specific metal-oxide thin films (such as SrTiC3 and CeO2) have shown that at particular combinations of gas composition and sensor material there exists a specific temperature at which the gas mixture changes from being an 'oxidising' agent to a 'reducing' agent. It is shown that this effect can be used to manufacture a temperature sensor that is calibrated in the desired temperature range (500-1000°C) and whose resistance exhibits an exponential dependence on temperature. This principle of measuring high temperatures allows a maximum resolution of ±1K.

Original languageEnglish
Pages (from-to)224-228
Number of pages5
JournalSensors and Actuators, B: Chemical
Volume34
Issue number1-3
DOIs
Publication statusPublished - Aug 1996

Keywords

  • Gas sensitivity
  • High temperatures
  • Metal oxides
  • Recalibration
  • Temperature sensor

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

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