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Differential Optical-absorption Spectroscopy (doas) System For Urban Atmospheric-pollution Monitoring

Edner, H; Ragnarson, P; Spannare, S and Svanberg, Sune LU (1993) In Optical Society of America. Journal B: Optical Physics 32(3). p.327-333
Abstract
We describe a fully computer-controlled differential optical absorption spectroscopy system for atmospheric air pollution monitoring. A receiving optical telescope can sequentially tune in to light beams from a number of distant high-pressure Xe lamp light sources to cover the area of a medium-sized city. A beam-finding servosystem and automatic gain control permit unattended long-time monitoring. Using an astronomical code, we can also search and track celestial sources. Selected wavelength regions are rapidly and repetitively swept by a monochromator to sensitively record the atmospheric absorption spectrum while avoiding the detrimental effects of atmospheric turbulence. By computer fitting to stored laboratory spectra, we can evaluate... (More)
We describe a fully computer-controlled differential optical absorption spectroscopy system for atmospheric air pollution monitoring. A receiving optical telescope can sequentially tune in to light beams from a number of distant high-pressure Xe lamp light sources to cover the area of a medium-sized city. A beam-finding servosystem and automatic gain control permit unattended long-time monitoring. Using an astronomical code, we can also search and track celestial sources. Selected wavelength regions are rapidly and repetitively swept by a monochromator to sensitively record the atmospheric absorption spectrum while avoiding the detrimental effects of atmospheric turbulence. By computer fitting to stored laboratory spectra, we can evaluate the path-averaged concentration of a number of important pollutants such as NO2, SO2, and O3. A measurement of NH3 and NO close to the UV limit is also demonstrated. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Optical Society of America. Journal B: Optical Physics
volume
32
issue
3
pages
327 - 333
publisher
Optical Society of America
external identifiers
  • Scopus:0000501974
ISSN
0740-3224
DOI
10.1364/AO.32.000327
language
English
LU publication?
yes
id
7638f18f-2b77-4d73-ad58-eb86a22b85f8 (old id 2257920)
date added to LUP
2012-02-22 23:22:54
date last changed
2016-10-13 04:30:33
@misc{7638f18f-2b77-4d73-ad58-eb86a22b85f8,
  abstract     = {We describe a fully computer-controlled differential optical absorption spectroscopy system for atmospheric air pollution monitoring. A receiving optical telescope can sequentially tune in to light beams from a number of distant high-pressure Xe lamp light sources to cover the area of a medium-sized city. A beam-finding servosystem and automatic gain control permit unattended long-time monitoring. Using an astronomical code, we can also search and track celestial sources. Selected wavelength regions are rapidly and repetitively swept by a monochromator to sensitively record the atmospheric absorption spectrum while avoiding the detrimental effects of atmospheric turbulence. By computer fitting to stored laboratory spectra, we can evaluate the path-averaged concentration of a number of important pollutants such as NO2, SO2, and O3. A measurement of NH3 and NO close to the UV limit is also demonstrated.},
  author       = {Edner, H and Ragnarson, P and Spannare, S and Svanberg, Sune},
  issn         = {0740-3224},
  language     = {eng},
  number       = {3},
  pages        = {327--333},
  publisher    = {ARRAY(0xa2a5a38)},
  series       = {Optical Society of America. Journal B: Optical Physics},
  title        = {Differential Optical-absorption Spectroscopy (doas) System For Urban Atmospheric-pollution Monitoring},
  url          = {http://dx.doi.org/10.1364/AO.32.000327},
  volume       = {32},
  year         = {1993},
}