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Methodology to estimate the transfer function of individual differential mobility analyzers

Martinsson, B. G. LU ; Karlsson, M. N.A. LU and Frank, G. LU (2001) In Aerosol Science and Technology 35(4). p.815-823
Abstract

A method to estimate the nonideal features of the transfer function of individual differential mobility analyzers (DMA) was developed and tested experimentally. This was up to now an unsolved problem, which is important for the precision in DMA measurements. The method involves three DMAs of unknown characteristics, which are used in three rounds of experiments with two DMAs according to a fixed schedule. The width of the transfer functions of the three DMAs is obtained in a single fitting procedure where one parameter is fitted to each DMA transfer function and the particle losses in each DMA are calculated in direct relation to that parameter and parameters known from the experiment. It was shown that the proposed method could solve... (More)

A method to estimate the nonideal features of the transfer function of individual differential mobility analyzers (DMA) was developed and tested experimentally. This was up to now an unsolved problem, which is important for the precision in DMA measurements. The method involves three DMAs of unknown characteristics, which are used in three rounds of experiments with two DMAs according to a fixed schedule. The width of the transfer functions of the three DMAs is obtained in a single fitting procedure where one parameter is fitted to each DMA transfer function and the particle losses in each DMA are calculated in direct relation to that parameter and parameters known from the experiment. It was shown that the proposed method could solve the apportioning problem and unambiguously estimate the transfer function width and the particle losses in each of the DMAs.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Aerosol Science and Technology
volume
35
issue
4
pages
9 pages
publisher
Taylor & Francis
external identifiers
  • scopus:0034791293
ISSN
0278-6826
DOI
10.1080/027868201753227361
language
English
LU publication?
yes
id
69e13aa1-be7c-4dde-a828-acd2555176ae
date added to LUP
2019-05-16 09:02:26
date last changed
2019-11-25 09:30:04
@article{69e13aa1-be7c-4dde-a828-acd2555176ae,
  abstract     = {<p>A method to estimate the nonideal features of the transfer function of individual differential mobility analyzers (DMA) was developed and tested experimentally. This was up to now an unsolved problem, which is important for the precision in DMA measurements. The method involves three DMAs of unknown characteristics, which are used in three rounds of experiments with two DMAs according to a fixed schedule. The width of the transfer functions of the three DMAs is obtained in a single fitting procedure where one parameter is fitted to each DMA transfer function and the particle losses in each DMA are calculated in direct relation to that parameter and parameters known from the experiment. It was shown that the proposed method could solve the apportioning problem and unambiguously estimate the transfer function width and the particle losses in each of the DMAs.</p>},
  author       = {Martinsson, B. G. and Karlsson, M. N.A. and Frank, G.},
  issn         = {0278-6826},
  language     = {eng},
  month        = {10},
  number       = {4},
  pages        = {815--823},
  publisher    = {Taylor & Francis},
  series       = {Aerosol Science and Technology},
  title        = {Methodology to estimate the transfer function of individual differential mobility analyzers},
  url          = {http://dx.doi.org/10.1080/027868201753227361},
  doi          = {10.1080/027868201753227361},
  volume       = {35},
  year         = {2001},
}