Differential Optical-absorption Spectroscopy (doas) System For Urban Atmospheric-pollution Monitoring
(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:
https://lup.lub.lu.se/record/2257920
- author
- Edner, H ; Ragnarson, P ; Spannare, S and Svanberg, Sune LU
- organization
- publishing date
- 1993
- 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
- 2016-04-04 09:26:18
- date last changed
- 2021-08-08 05:17:21
@article{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 = {{Optical Society of America}},
series = {{Optical Society of America. Journal B: Optical Physics}},
title = {{Differential Optical-absorption Spectroscopy (doas) System For Urban Atmospheric-pollution Monitoring}},
url = {{https://lup.lub.lu.se/search/files/5324222/2297153.pdf}},
doi = {{10.1364/AO.32.000327}},
volume = {{32}},
year = {{1993}},
}