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Picosecond-lidar thermometry in a measurement volume surrounded by highly scattering media

Kaldvee, Billy LU ; Bood, Joakim LU and Aldén, Marcus LU (2011) In Measurement Science & Technology 22(12).
Abstract
In this work, a picosecond-lidar system, using a Nd:YAG picosecond laser, a Newtonian telescope and a streak camera, was used for single-ended furnace diagnostics. The optical access of the furnace was obstructed by a sooty diffusion ethylene flame. It was demonstrated that, with proper optical arrangement, the elastic scattering of the flame can be mapped in one dimension simultaneously as temperatures, up to 1200 K, are measured in the furnace using Rayleigh thermometry. Accumulated point temperature measurements as well as one-and two-dimensional measurements were conducted. A discussion about noise influence on accuracy and precision shows that measurements allowing a resolution of similar to 6 cm are possible with a single-pixel... (More)
In this work, a picosecond-lidar system, using a Nd:YAG picosecond laser, a Newtonian telescope and a streak camera, was used for single-ended furnace diagnostics. The optical access of the furnace was obstructed by a sooty diffusion ethylene flame. It was demonstrated that, with proper optical arrangement, the elastic scattering of the flame can be mapped in one dimension simultaneously as temperatures, up to 1200 K, are measured in the furnace using Rayleigh thermometry. Accumulated point temperature measurements as well as one-and two-dimensional measurements were conducted. A discussion about noise influence on accuracy and precision shows that measurements allowing a resolution of similar to 6 cm are possible with a single-pixel temperature standard deviation of 91 K, while mapping soot scattering from the flame within the dynamic range of the streak camera, using 30 mJ pulse energy. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
laser diagnostics, lidar, Rayleigh scattering, thermometry, soot mapping
in
Measurement Science & Technology
volume
22
issue
12
publisher
IOP Publishing
external identifiers
  • wos:000298148200024
  • scopus:81555220984
ISSN
0957-0233
DOI
10.1088/0957-0233/22/12/125302
language
English
LU publication?
yes
id
ed94f681-3476-485f-96d6-d1441ba0ac04 (old id 2333227)
date added to LUP
2012-02-06 13:57:32
date last changed
2017-01-01 06:28:53
@article{ed94f681-3476-485f-96d6-d1441ba0ac04,
  abstract     = {In this work, a picosecond-lidar system, using a Nd:YAG picosecond laser, a Newtonian telescope and a streak camera, was used for single-ended furnace diagnostics. The optical access of the furnace was obstructed by a sooty diffusion ethylene flame. It was demonstrated that, with proper optical arrangement, the elastic scattering of the flame can be mapped in one dimension simultaneously as temperatures, up to 1200 K, are measured in the furnace using Rayleigh thermometry. Accumulated point temperature measurements as well as one-and two-dimensional measurements were conducted. A discussion about noise influence on accuracy and precision shows that measurements allowing a resolution of similar to 6 cm are possible with a single-pixel temperature standard deviation of 91 K, while mapping soot scattering from the flame within the dynamic range of the streak camera, using 30 mJ pulse energy.},
  articleno    = {125302},
  author       = {Kaldvee, Billy and Bood, Joakim and Aldén, Marcus},
  issn         = {0957-0233},
  keyword      = {laser diagnostics,lidar,Rayleigh scattering,thermometry,soot mapping},
  language     = {eng},
  number       = {12},
  publisher    = {IOP Publishing},
  series       = {Measurement Science & Technology},
  title        = {Picosecond-lidar thermometry in a measurement volume surrounded by highly scattering media},
  url          = {http://dx.doi.org/10.1088/0957-0233/22/12/125302},
  volume       = {22},
  year         = {2011},
}