A new method for instantaneously measuring the spatial distribution and size of all particles in a plane is presented. The method is applicable to spherical particles larger than about 10 μm located in particle flow regimes with number densities less than or on the order of 500 to 1000 per cm3. The accuracy and sizing range depend on characteristics of the illuminating sheet and the digital cameras employed, and are discussed below. Results of initial experiments to validate the technique are also presented.
REFERENCES
1.
Chigier
N. A.
and Stewart
G.
, “Guest editorial: particle sizing and spray analysis
”, Opt. Engr.
, 23
, 554
, (1984
).2.
Jackson
T. A.
and Samuelsen
G. S.
, “Droplet sizing interferometry: a comparison of the visibility and phase/Doppler techniques
”, App. Opt.
, 26
, p. 2137
(1987
).3.
Dodge
L. G.
, Rhodes
D. J.
, and Reitz
R. D.
, “Drop-size measurement techniques for sprays: comparison of Malvern laser diffraction and Aerometrics phase/Doppler
”, App. Opt.
, 26
, p. 2144
(1987
).4.
Paul
P. H.
and Kychakoff
G.
, “A miniature fiberoptic probe for optical particle sizing
”, J. of Lightwave Technology
, 5
, p. 967
(1987
).5.
Holve
D. J.
and Annen
K. D.
, “Optical particle counting, sizing, and velocimetry using intensity deconvolution”
, Opt. Engr.
, 23
, p. 591
(1984
).6.
Cooke
D. D.
and Kerker
M.
, “Response calculations for light scattering aerosol particle counters
”, App. Opt.
, 14
, p. 734
(1975
).7.
Ariessohn
P. C.
, “Optical diagnostic measurements of coal slag parameters in combustion MHD systems
”, Ph. D. thesis, Stanford University
, Stanford, CA
, 1980
.8.
Bohren
C. F.
and Huffman
D. R.
, Absorption and Scattering of Light by Small Particles
, (Wiley and Sons
, New York
, 1983
).9.
Kerker
M.
, The Scattering of Light and Other Electromagnetic Radiation
, (Academic
, New York
, 1969
).10.
van de Hulst
H. C.
, Light Scattering by Small Particles
, (Wiley and Sons
, New York
, 1957
).11.
Chylek
P.
, “Partial wave resonances and ripple structure in the Mie normalized extinction cross-section
”, J. Opt. Soc. Am.
, 66
, p. 285
(1976
).12.
International Symposium on Optical Particle Sizing: Theory and Practice
, France
, May, 1987
.13.
Hess
C. F.
, “Non-intrusive optical single particle counter for measuring the size and velocity of droplets in a spray
”, App. Opt.
, 23
, p. 4375
(1984
).14.
Wang
J. C. F.
and Hencken
K. R.
, “In situ particle size measurements using a two-color laser scattering technique
”, App. Opt.
, 25
, p. 653
(1986
).15.
Tichenor
D. A.
, Mitchell
R. E.
, Hencken
K. R.
, and Niksa
S.
, “Simultaneous in-situ measurement of the size, temperature, and velocity of a particle in a combustion environment”, 20th Symposium (International) on Combustion
, (The Combustion Inst.
, Pittsburgh, PA
, 1984
), p. 1213
.16.
Tam
W. G.
and Zardecki
A.
, “Multiple scattering corrections to the Beer-Lambert law
”, App. Opt.
, 21
, pp. 2405
–2412
(1982
).17.
Berglund
R.
and Liu
b.
, “Generation of monodisperse aerosol standards
”, Environ. Sci. Technol.
, 7
, p. 147
(1973
).18.
Eckbreth
A. C.
and Anderson
T. J.
, “Dual broadband CARS for simultaneous, multiple species measurements
”, App. Opt.
, 24
, p. 2731
(1985
).19.
Anderson
T. J.
, Dobbs
G. M.
, and Eckbreth
A. C.
, “Mobile CARS instrument for combustion and plasma diagnostics
”, App. Opt.
, 25
, p. 4076
(1986
).
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1988
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