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Applied Optics

Applied Optics


  • Vol. 42, Iss. 33 — Nov. 20, 2003
  • pp: 6595–6604

Dynamic spectroscopic measurements of the temperature and pressure cycles in a MOPITT pressure modulator cell

Richard Wehr, Eamonn McKernan, Adrian Vitcu, Roman Ciurylo, and James R. Drummond  »View Author Affiliations

Applied Optics, Vol. 42, Issue 33, pp. 6595-6604 (2003)

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The temperature and pressure cycles inside a pressure modulator cell (PMC) of the type used for gas-correlation radiometry aboard the Measurements of Pollution in the Troposphere (MOPITT) satellite instrument have been determined from dynamic measurements of the spectral line shapes of the R(0) and R(18) transitions in the fundamental vibrational-rotational band of carbon monoxide. The line strengths and linewidths were used to calculate the temperature and pressure, respectively, with a temporal resolution of approximately 200 μs, or 1/100 of a PMC cycle. The results are compared with a thermodynamic box model.

© 2003 Optical Society of America

OCIS Codes
(020.3690) Atomic and molecular physics : Line shapes and shifts
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(280.1120) Remote sensing and sensors : Air pollution monitoring
(300.6340) Spectroscopy : Spectroscopy, infrared
(300.6360) Spectroscopy : Spectroscopy, laser

Original Manuscript: February 24, 2003
Revised Manuscript: August 19, 2003
Published: November 20, 2003

Richard Wehr, Eamonn McKernan, Adrian Vitcu, Roman Ciurylo, and James R. Drummond, "Dynamic spectroscopic measurements of the temperature and pressure cycles in a MOPITT pressure modulator cell," Appl. Opt. 42, 6595-6604 (2003)

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