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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 7 — Mar. 1, 1999
  • pp: 1127–1132

Detection based on rainbow refractometry of droplet sphericity in liquid–liquid systems

Huburtus Lohner, Peter Lehmann, and Klaus Bauckhage  »View Author Affiliations


Applied Optics, Vol. 38, Issue 7, pp. 1127-1132 (1999)
http://dx.doi.org/10.1364/AO.38.001127


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Abstract

The shape of droplets in liquid–liquid systems influences their mass and momentum transfer processes. The deviation from sphericity of rising droplets in liquid–liquid systems was investigated for different droplet sizes. Rainbow refractometry permits one to test, in this case, whether the use of laser-optical particle sizing will be correct or faulty. Since the assumption of spherical particle geometry is a general basis of laser-optical particle-sizing techniques such as rainbow refractometry or phase Doppler anemometry, deviation from the spherical shape results in a measuring error. A sphericity check based on rainbow refractometry is introduced.

© 1999 Optical Society of America

OCIS Codes
(040.1520) Detectors : CCD, charge-coupled device
(080.0080) Geometric optics : Geometric optics

History
Original Manuscript: August 11, 1998
Revised Manuscript: November 17, 1998
Published: March 1, 1999

Citation
Huburtus Lohner, Peter Lehmann, and Klaus Bauckhage, "Detection based on rainbow refractometry of droplet sphericity in liquid–liquid systems," Appl. Opt. 38, 1127-1132 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-7-1127


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References

  1. H. Lohner, E. H. Schombacher, K. Bauckhage, “Characterization of droplets in liquid–liquid extraction by laser-optical measurement techniques,” Chem. Eng. Technol. 21, 337–341 (1998). [CrossRef]
  2. E. H. Schombacher, H. Lohner, K. Bauckhage, “Ein laseroptisches Messverfahren zur Untersuchung von Tropfen in der Flüssig/Flüssig-Extraktion,” Chem. Ing. Tech. 70, 713–717 (1998). [CrossRef]
  3. H. Schombacher, “Laseroptische Messtechniken zur Bestimmung prozessrelevanter Grössen in der Flüssig/Flüssig-Extraktion,” VDI-Fortschrittsber. 8, 79–118 (1997).
  4. P. Lehmann, E. H. Schombacher, H. Lohner, K. Bauckhage, “Characterization of nonspherical and oscillating droplets by phase-Doppler-anemometry and rainbow refractometry,” in PARTEC 98, Seventh European Symposium on Particle Characterization, R. Weichert, ed. (Nürnberg Messe GmbH Nürnberg/Germany, 1998), pp. 109–119.
  5. W. Möbius, “Zur Theorie des Regenbogens und ihrer experimentellen Prüfung,” Ann. Phys. 33, 1493–1558 (1910). [CrossRef]
  6. P. L. Marston, “Rainbow phenomena and the detection of nonsphericity in drops,” Appl. Opt. 19, 680–685 (1980). [CrossRef] [PubMed]
  7. D. S. Langley, P. L. Marston, “Generalized tertiary rainbow of slightly oblate drops: observations with laser illumination,” Appl. Opt. 37, 1520–1526 (1998). [CrossRef]
  8. P. L. Marston, E. H. Trinh, “Hyperbolic umbilic diffraction catastrophe and rainbow scattering from spheroidal drops,” Nature (London) 312, 529–530 (1984). [CrossRef]
  9. J. van Beeck, M. L. Riethmuller, “Nonintrusive measurements of temperature and size of single falling raindrops,” Appl. Opt. 34, 1633–1639 (1995). [CrossRef] [PubMed]
  10. J. van Beeck, M. L. Riethmuller, “Rainbow phenomena applied to the measurement of droplet size and velocity and to the detection of nonsphericity,” Appl. Opt. 35, 2259–2266 (1996). [CrossRef] [PubMed]
  11. J. van Beeck, M. L. Riethmuller, “Rainbow interferometry with wire diffraction for simultaneous measurement of Droplet temperature, size, and velocity,” Part. Part. Charact. 14, 186–192 (1997).
  12. H. M. Nussenzveig, “The theory of the rainbow,” Sci. Am. 236, 116–127 (1977). [CrossRef]
  13. H. M. Nussenzveig, Diffraction Effects in Semiclassical Scattering (Cambridge University, Cambridge, England, 1992). [CrossRef]
  14. H. C. van de Hulst, Light Scattering by Small Particles (Dover, New York, 1981).
  15. J. D. Walker, “Multiple rainbows from single drops and other liquids,” Am. J. Phys. 44, 421–433 (1976). [CrossRef]
  16. R. T. Wang, H. C. van de Hulst, “Rainbows: Mie computations and the Airy approximation,” Appl. Opt. 30, 106–117 (1991). [CrossRef] [PubMed]
  17. G. P. Können, J. H. de Boer, “Polarized rainbow,” Appl. Opt. 18, 1961–1965 (1979). [CrossRef] [PubMed]
  18. J. W. Goodman, Introduction to Fourier Optics (McGraw-Hill, New York, 1968).
  19. J. van Beeck, M. L. Riethmuller, “Rainbow thermometry with a pulsed laser,” in Proceedings of Ninth International Symposium on Applications of Laser Techniques to Fluid Mechanics, Vol. 1, D. F. G. Durao, ed. (Instituto Superior Técnico, Lisbon, 1998), pp. 18.6.1–7.
  20. R. Clift, J. R. Grace, M. E. Weber, Bubbles, Drops and Particles (Academic, New York, 1978).

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