Rainbow phenomena applied to the measurement of droplet size and velocity and to the detection of nonsphericity

被引：74

作者：

vanBeeck, JPAJ

Riethmuller, ML

机构：

[1] Karman Institute for Fluid Dynamics, Rhode-Saint-Genése, B-1640

来源：

APPLIED OPTICS | 1996年 / 35卷 / 13期

关键词：

droplet velocity; droplet diameter; droplet temperature; rainbow; laser technique; Airy theory for the rainbow; Lorenz-Mie theory;

D O I：

10.1364/AO.35.002259

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An experimental method is presented that detects whether a droplet is spherical. The method is based on a comparison between two droplet diameters deduced from two different optical interference patterns observed in a rainbow that is created by a droplet scattering laser light. Experimental validation has been carried out with a CCD camera. Once a rainbow pattern has been identified as coming from a spherical droplet, we can derive a reliable droplet velocity and diameter from the same interference patterns, using theories for the rainbow that are valid only for spherical droplets. Preliminary experiments have been carried out with a laser beam and a photomultiplier. (C) 1996 Optical Society of America

引用

页码：2259 / 2266

页数：8

共 17 条

[1]

Bohren C. F., 1998, Absorption and Scattering by a Sphere, DOI [DOI 10.1002/9783527618156, DOI 10.1002/9783527618156.CH4]

[2] LIGHT-SCATTERING FROM A SPHERE ARBITRARILY LOCATED IN A GAUSSIAN-BEAM, USING A BROMWICH FORMULATION [J].

GOUESBET, G ;

MAHEU, B ;

GREHAN, G .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1988, 5 (09) :1427-1443

[3]

HECHT E, 1987, OPTICS, P498

[4] COOPERATIVE EFFECTS AMONG PARTIAL-WAVES IN MIE SCATTERING [J].

LOCK, JA .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1988, 5 (12) :2032-2044

[5] THEORY OF THE OBSERVATIONS MADE OF HIGH-ORDER RAINBOWS FROM A SINGLE WATER DROPLET [J].

LOCK, JA .

APPLIED OPTICS, 1987, 26 (24) :5291-5298

[6] OPTICAL CAUSTICS IN NATURAL PHENOMENA [J].

LOCK, JA ;

ANDREWS, JH .

AMERICAN JOURNAL OF PHYSICS, 1992, 60 (05) :397-407

[7] RAINBOW PHENOMENA AND THE DETECTION OF NON-SPHERICITY IN DROPS [J].

MARSTON, PL .

APPLIED OPTICS, 1980, 19 (05) :680-689

[8]

Mobius W, 1910, ANN PHYS-BERLIN, V33, P1493

[9] SURFACE-WAVES IN BACKSCATTERING AND THE LOCALIZATION PRINCIPLE [J].

PROBERTJONES, JR .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1983, 73 (04) :503-503

[10]

Roth N., 1990, Journal of Laser Applications, V2, P37, DOI 10.2351/1.4745251

← 1 2 →