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Temperature measurements of single droplets by use of laser-induced phosphorescence

Omrane, Alaa LU ; Juhlin, G; Ossler, Frederik LU and Aldén, Marcus LU (2004) In Applied Optics 43(17). p.3523-3529
Abstract
A novel technique for measuring droplet temperatures has been demonstrated. Laser-induced phosphorescence from thermographic phosphors, seeded to distilled water and iso-octane, was used to measure temperatures of single falling droplets. The phosphors were excited by the fourth and third harmonies of a Nd:YAG laser. The subsequent emission was evaluated by spectral and temporal investigations of the thermographic phosphors Mg4FGeO6:Mn and La2O2S:Eu, respectively. The spectral and the temporal methods permitted temperature measurements of free-falling droplets up to 433 K. Results from both methods, which show an estimated accuracy of better than 1%, are presented. (C) 2004 Optical Society of America.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Optics
volume
43
issue
17
pages
3523 - 3529
publisher
OSA
external identifiers
  • wos:000221920600020
  • pmid:15219035
  • scopus:3042630682
ISSN
2155-3165
language
English
LU publication?
yes
id
2ffaf8ed-d09d-44bf-a873-765aaab449e2 (old id 275744)
alternative location
http://www.opticsinfobase.org/abstract.cfm?URI=ao-43-17-3523
date added to LUP
2007-10-29 12:02:07
date last changed
2017-09-10 03:52:14
@article{2ffaf8ed-d09d-44bf-a873-765aaab449e2,
  abstract     = {A novel technique for measuring droplet temperatures has been demonstrated. Laser-induced phosphorescence from thermographic phosphors, seeded to distilled water and iso-octane, was used to measure temperatures of single falling droplets. The phosphors were excited by the fourth and third harmonies of a Nd:YAG laser. The subsequent emission was evaluated by spectral and temporal investigations of the thermographic phosphors Mg4FGeO6:Mn and La2O2S:Eu, respectively. The spectral and the temporal methods permitted temperature measurements of free-falling droplets up to 433 K. Results from both methods, which show an estimated accuracy of better than 1%, are presented. (C) 2004 Optical Society of America.},
  author       = {Omrane, Alaa and Juhlin, G and Ossler, Frederik and Aldén, Marcus},
  issn         = {2155-3165},
  language     = {eng},
  number       = {17},
  pages        = {3523--3529},
  publisher    = {OSA},
  series       = {Applied Optics},
  title        = {Temperature measurements of single droplets by use of laser-induced phosphorescence},
  volume       = {43},
  year         = {2004},
}