reviewMeasurement Science and TechnologyNov 28, 2012Closed access

Optical gas sensing: a review

JHJ. HodgkinsonRPRalph P. Tatam

Cranfield University

Indexed incrossref

Abstract

The detection and measurement of gas concentrations using the characteristic optical absorption of the gas species is important for both understanding and monitoring a variety of phenomena from industrial processes to environmental change. This study reviews the field, covering several individual gas detection techniques including non-dispersive infrared, spectrophotometry, tunable diode laser spectroscopy and photoacoustic spectroscopy. We present the basis for each technique, recent developments in methods and performance limitations. The technology available to support this field, in terms of key components such as light sources and gas cells, has advanced rapidly in recent years and we discuss these new…

Citation impact

1,693
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FWCI
36.30
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100%
References
419
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Authors

2

Topics & keywords

Topics
Keywords
  • Benchmarking
  • Photoacoustic spectroscopy
  • Tunable diode laser absorption spectroscopy
  • Field (mathematics)
  • Photoacoustic imaging in biomedicine
  • Process engineering
  • Spectroscopy
  • Computer science
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