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:
-
- Clifton Park, NY
- late of Scotia, NY
- Issue Date:
- Research Org.:
- Knolls Atomic Power Laboratory (KAPL), Niskayuna, NY (United States)
- OSTI Identifier:
- 868268
- Patent Number(s):
- 5110208
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- 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 = {Wed Jan 01 00:00:00 EST 1992},
month = {Wed Jan 01 00:00:00 EST 1992}
}
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