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Other Measurement Technologies

  • Heikki Torvela

Abstract

By the use of electrochemical measuring cells, it has become possible to construct portable measuring instruments which can simultaneously record concentrations of several gas components. In the instrument, there is a specific cell for each gas to be measured. Electrochemical cells have been produced to measure the concentrations of oxygen, carbon dioxide, carbon monoxide, hydrogen sulphide, nitrogen oxides and sulphur oxides from emission gases.

Keywords

Surface Acoustic Wave Sulphur Oxide Atmospheric Emission Potential Energy Barrier Semiconductor Sensor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag London 1994

Authors and Affiliations

  • Heikki Torvela
    • 1
  1. 1.EcocenterUniversity of OuluOuluFinland

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