Apparatus for measuring the local void fraction in a flowing liquid containing a gas
Abstract
The local void fraction in liquid containing a gas is measured by placing an impedance-variation probe in the liquid, applying a controlled voltage or current to the probe, and measuring the probe current or voltage. A circuit for applying the one electrical parameter and measuring the other includes a feedback amplifier that minimizes the effect of probe capacitance and a digitizer to provide a clean signal. Time integration of the signal provides a measure of the void fraction, and an oscilloscope display also shows bubble size and distribution.
- Inventors:
-
- Downers Grove, IL
- Publication Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 863947
- Patent Number(s):
- US 4282481
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- apparatus; measuring; local; void; fraction; flowing; liquid; containing; gas; measured; placing; impedance-variation; probe; applying; controlled; voltage; current; circuit; electrical; parameter; feedback; amplifier; minimizes; effect; capacitance; digitizer; provide; clean; signal; time; integration; provides; measure; oscilloscope; display; bubble; size; distribution; void fraction; liquid containing; flowing liquid; electrical parameter; time integration; controlled voltage; signal provide; local void; /324/
Citation Formats
Dunn, Patrick F. Apparatus for measuring the local void fraction in a flowing liquid containing a gas. United States: N. p., 1981.
Web.
Dunn, Patrick F. Apparatus for measuring the local void fraction in a flowing liquid containing a gas. United States.
Dunn, Patrick F. 1981.
"Apparatus for measuring the local void fraction in a flowing liquid containing a gas". United States. https://www.osti.gov/servlets/purl/863947.
@article{osti_863947,
title = {Apparatus for measuring the local void fraction in a flowing liquid containing a gas},
author = {Dunn, Patrick F},
abstractNote = {The local void fraction in liquid containing a gas is measured by placing an impedance-variation probe in the liquid, applying a controlled voltage or current to the probe, and measuring the probe current or voltage. A circuit for applying the one electrical parameter and measuring the other includes a feedback amplifier that minimizes the effect of probe capacitance and a digitizer to provide a clean signal. Time integration of the signal provides a measure of the void fraction, and an oscilloscope display also shows bubble size and distribution.},
doi = {},
url = {https://www.osti.gov/biblio/863947},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1981},
month = {Thu Jan 01 00:00:00 EST 1981}
}
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.