Multi-component chemical analysis of gas mixtures using a continuously tuneable lidar system
(2004) In Applied Physics B 79(4). p.525-530- Abstract
- Differential absorption lidar (DIAL) measurements are usually made on single compounds by alternately switching the wavelength between on and off a resonance line. The selection of more than two wavelengths is a mathematical necessity for simultaneous measurement of multiple species or for resolving interference effects between a compound of interest and a background gas such as water vapour or carbon dioxide. This is especially true in the mid-IR region, where many hydrocarbon compounds have important spectral features. We present a method for remote measurement of gas mixtures in the mid-IR region based on a newly developed fast-switching, frequency-agile optical parametric oscillator lidar transmitter. A multivariate statistical... (More)
- Differential absorption lidar (DIAL) measurements are usually made on single compounds by alternately switching the wavelength between on and off a resonance line. The selection of more than two wavelengths is a mathematical necessity for simultaneous measurement of multiple species or for resolving interference effects between a compound of interest and a background gas such as water vapour or carbon dioxide. This is especially true in the mid-IR region, where many hydrocarbon compounds have important spectral features. We present a method for remote measurement of gas mixtures in the mid-IR region based on a newly developed fast-switching, frequency-agile optical parametric oscillator lidar transmitter. A multivariate statistical procedure has also been applied for this system, which combines a genetic algorithm for wavelength selection with a partial least squares method for identifying individual compounds from their combined absorption spectrum. A calibration transfer is performed for compounds of interest using reference spectra from an absorption spectra database. Both indoor absorption cell measurements and outdoor remote range resolved measurements of hydrocarbon mixtures were performed to explore the performance of the method. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/270990
- author
- Weibring, Petter LU ; Abrahamsson, Christoffer LU ; Sjöholm, Mikael LU ; Smith, JN ; Edner, Hans LU and Svanberg, Sune LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Physics B
- volume
- 79
- issue
- 4
- pages
- 525 - 530
- publisher
- Springer
- external identifiers
-
- wos:000223260300022
- scopus:4444257627
- ISSN
- 0946-2171
- DOI
- 10.1007/s00340-004-1565-8
- language
- English
- LU publication?
- yes
- id
- 26f92c31-b3ea-4c5f-8ba8-e4b04af60e27 (old id 270990)
- date added to LUP
- 2016-04-01 11:33:37
- date last changed
- 2022-04-05 01:46:02
@article{26f92c31-b3ea-4c5f-8ba8-e4b04af60e27,
abstract = {{Differential absorption lidar (DIAL) measurements are usually made on single compounds by alternately switching the wavelength between on and off a resonance line. The selection of more than two wavelengths is a mathematical necessity for simultaneous measurement of multiple species or for resolving interference effects between a compound of interest and a background gas such as water vapour or carbon dioxide. This is especially true in the mid-IR region, where many hydrocarbon compounds have important spectral features. We present a method for remote measurement of gas mixtures in the mid-IR region based on a newly developed fast-switching, frequency-agile optical parametric oscillator lidar transmitter. A multivariate statistical procedure has also been applied for this system, which combines a genetic algorithm for wavelength selection with a partial least squares method for identifying individual compounds from their combined absorption spectrum. A calibration transfer is performed for compounds of interest using reference spectra from an absorption spectra database. Both indoor absorption cell measurements and outdoor remote range resolved measurements of hydrocarbon mixtures were performed to explore the performance of the method.}},
author = {{Weibring, Petter and Abrahamsson, Christoffer and Sjöholm, Mikael and Smith, JN and Edner, Hans and Svanberg, Sune}},
issn = {{0946-2171}},
language = {{eng}},
number = {{4}},
pages = {{525--530}},
publisher = {{Springer}},
series = {{Applied Physics B}},
title = {{Multi-component chemical analysis of gas mixtures using a continuously tuneable lidar system}},
url = {{https://lup.lub.lu.se/search/files/2543179/2370932.pdf}},
doi = {{10.1007/s00340-004-1565-8}},
volume = {{79}},
year = {{2004}},
}