Mie Scattering as a Technique for the Sizing of Air Bubbles.

Abstract

A technique has been developed which allows the radius of a bubble in a fluid to be accurately measured without disturbing the bubble. Results are presented which show that radius measurements of single air-bubbles in water can be achieved by shining a He-Ne laser on the bubble and measuring the light scattered at 80 degrees. Light intensity measurements at a scattering angle of 55 degrees were used to calibrate a photodiode detection system and to demonstrate the correlation of data with Mie scattering theory. The photodiode was then moved to 80 degrees for actual radius measurements. This technique was accurate to within 3% for bubbles with radii less than 80 microns. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1984
Accession Number
ADA142737

Entities

People

  • G. M. Hansen
  • L. A. Crum

Organizations

  • University of Mississippi

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Amplifiers
  • Bessel Functions
  • Diffraction
  • Electromagnetic Fields
  • Electromagnetic Radiation
  • Electromagnetic Scattering
  • Far Field
  • Laser Beams
  • Light Scattering
  • Measurement
  • Mie Scattering
  • Military Research
  • Refractive Index
  • Scattering
  • Standing Waves
  • Wave Equations

Fields of Study

  • Physics

Readers

  • Aerosol Science/Aerosol Physics
  • Optical Physics and Photonics.
  • Underwater engineering and Marine Technology.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers