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Compensation method for attenuated planar laser images of optically dense sprays
 

Summary: Compensation method for attenuated planar laser
images of optically dense sprays
Rafeef Abu-Gharbieh, John L. Persson, Michael Foš rsth, Arne RoseŽ n,
Anders Karlstroš m, and Tomas Gustavsson
We present a method for compensating laser attenuation in optically dense sprays, in particular for use
in combustion engine research. Images of the fuel sprays are produced by planar laser imaging, where
Mie scattered light from a cross section of the spray is imaged onto a CCD camera. The compensation
scheme is based on the Beer­Lambert law, which is used here to sum up the loss of light along the path
of the laser in the image, and to compensate iteratively, pixel by pixel, for this loss. © 2000 Optical
Society of America
OCIS codes: 100.2960, 290.4020, 290.1090.
1. Introduction
The interest in spray characterization is mainly due
to the many applications of sprays in aerosols and
combustion systems and to the need for understand-
ing the spray behavior to improve the performance of
these differing systems. In combustion engines
there is also currently a trend toward increased use of
fuel injection based on high-pressure spray injectors
in direct-injected Otto and two-stroke engines and in

  

Source: Abugharbieh, Rafeef - Department of Electrical and Computer Engineering, University of British Columbia

 

Collections: Biology and Medicine; Computer Technologies and Information Sciences