RECOVERY OF PARTICLE SIZE DISTRIBUTION OF ULTRAFINE AEROSOLS FROM DIFFUSIONAL DECAY MEASUREMENTS

Authors
  1. Yee, E.C.
Corporate Authors
Defence Research Establishment Suffield, Ralston ALTA (CAN)
Abstract
The paper presents a new procedure for reconstructing a submicron aerosol particle size distribution function (PSDF) from a finite number of noisy diffusion battery measurements. This ill-posed problem is solved by utilizing a maximum entropy approach to select, as the solution, that unique PSDF which maximizes the Shannon-Jaynes entropy subject to the constraints imposed by the given measurements. The utility of the method is demonstrated by a number of numerical examples with both noise-free and noisy synthetic diffusion battery data. This new method is compared to two existing inversion procedures and is shown to have superior performance in almost all of the simulated data examples tested.
Report Number
DRES-527 — Final Report
Date of publication
15 Aug 1989
Number of Pages
36
DSTKIM No
89-03674
CANDIS No
61570
Format(s):
Hardcopy;Originator's fiche received by DSIS

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