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2D-temperature imaging of single droplets and sprays using thermographic phosphors

Omrane, Alaa LU ; Särner, Gustaf LU and Aldén, Marcus LU (2004) In Applied Physics B 79(4). p.431-434
Abstract
A novel 2D-technique for temperature visualization of single droplets and sprays is presented. Laser induced emission from thermographic phosphor seeded to the investigated liquid was detected by a fast framing camera. The subsequent phosphorescence images measured by seven consecutively gated CCD detectors allowed pixel-to-pixel lifetime evaluation of the phosphorescence emission. The temperature at each pixel position was evaluated using a calibration procedure of temperature against lifetime. These measurements were applied first to a free falling water based droplet, then to a suspended droplet in an ultrasonic levitator. Finally, the technique was applied to spray.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics B
volume
79
issue
4
pages
431 - 434
publisher
Springer
external identifiers
  • wos:000223260300007
  • scopus:4444283159
ISSN
0946-2171
DOI
10.1007/s00340-004-1584-5
language
English
LU publication?
yes
id
819aff71-1e65-4725-905a-d74210e539f0 (old id 270986)
date added to LUP
2007-10-29 11:56:48
date last changed
2017-10-29 03:43:34
@article{819aff71-1e65-4725-905a-d74210e539f0,
  abstract     = {A novel 2D-technique for temperature visualization of single droplets and sprays is presented. Laser induced emission from thermographic phosphor seeded to the investigated liquid was detected by a fast framing camera. The subsequent phosphorescence images measured by seven consecutively gated CCD detectors allowed pixel-to-pixel lifetime evaluation of the phosphorescence emission. The temperature at each pixel position was evaluated using a calibration procedure of temperature against lifetime. These measurements were applied first to a free falling water based droplet, then to a suspended droplet in an ultrasonic levitator. Finally, the technique was applied to spray.},
  author       = {Omrane, Alaa and Särner, Gustaf and Aldén, Marcus},
  issn         = {0946-2171},
  language     = {eng},
  number       = {4},
  pages        = {431--434},
  publisher    = {Springer},
  series       = {Applied Physics B},
  title        = {2D-temperature imaging of single droplets and sprays using thermographic phosphors},
  url          = {http://dx.doi.org/10.1007/s00340-004-1584-5},
  volume       = {79},
  year         = {2004},
}