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Title: Measurement of average density and relative volumes in a dispersed two-phase fluid

Abstract

An apparatus and a method are disclosed for measuring the average density and relative volumes in an essentially transparent, dispersed two-phase fluid. A laser beam with a diameter no greater than 1% of the diameter of the bubbles, droplets, or particles of the dispersed phase is directed onto a diffraction grating. A single-order component of the diffracted beam is directed through the two-phase fluid and its refraction is measured. Preferably, the refracted beam exiting the fluid is incident upon a optical filter with linearly varing optical density and the intensity of the filtered beam is measured. The invention can be combined with other laser-based measurement systems, e.g., laser doppler anemometry.

Inventors:
 [1];  [2]
  1. Clifton Park, NY
  2. late of Scotia, NY
Publication Date:
Research Org.:
Knolls Atomic Power Laboratory (KAPL), Niskayuna, NY
OSTI Identifier:
868268
Patent Number(s):
US 5110208
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
AC12-76SN00052
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
measurement; average; density; relative; volumes; dispersed; two-phase; fluid; apparatus; method; disclosed; measuring; essentially; transparent; laser; beam; diameter; bubbles; droplets; particles; phase; directed; diffraction; grating; single-order; component; diffracted; refraction; measured; preferably; refracted; exiting; incident; optical; filter; linearly; varing; intensity; filtered; combined; laser-based; systems; doppler; anemometry; two-phase fluid; optical density; beam exit; optical filter; diffraction grating; laser beam; dispersed phase; phase fluid; relative volume; measurement systems; diffracted beam; beam exiting; average density; laser doppler; relative volumes; doppler anemometry; dispersed two-phase; /356/

Citation Formats

Sreepada, Sastry R, and Rippel, Robert R. Measurement of average density and relative volumes in a dispersed two-phase fluid. United States: N. p., 1992. Web.
Sreepada, Sastry R, & Rippel, Robert R. Measurement of average density and relative volumes in a dispersed two-phase fluid. United States.
Sreepada, Sastry R, and Rippel, Robert R. Wed . "Measurement of average density and relative volumes in a dispersed two-phase fluid". United States. https://www.osti.gov/servlets/purl/868268.
@article{osti_868268,
title = {Measurement of average density and relative volumes in a dispersed two-phase fluid},
author = {Sreepada, Sastry R and Rippel, Robert R},
abstractNote = {An apparatus and a method are disclosed for measuring the average density and relative volumes in an essentially transparent, dispersed two-phase fluid. A laser beam with a diameter no greater than 1% of the diameter of the bubbles, droplets, or particles of the dispersed phase is directed onto a diffraction grating. A single-order component of the diffracted beam is directed through the two-phase fluid and its refraction is measured. Preferably, the refracted beam exiting the fluid is incident upon a optical filter with linearly varing optical density and the intensity of the filtered beam is measured. The invention can be combined with other laser-based measurement systems, e.g., laser doppler anemometry.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

Patent:

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