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Title: High pressure liquid level monitor

Abstract

A liquid level monitor for tracking the level of a coal slurry in a high-pressure vessel including a toroidal-shaped float with magnetically permeable bands thereon disposed within the vessel, two pairs of magnetic field generators and detectors disposed outside the vessel adjacent the top and bottom thereof and magnetically coupled to the magnetically permeable bands on the float, and signal processing circuitry for combining signals from the top and bottom detectors for generating a monotonically increasing analog control signal which is a function of liquid level. The control signal may be utilized to operate high-pressure control valves associated with processes in which the high-pressure vessel is used.

Inventors:
;
Issue Date:
Research Org.:
National Bureau of Standards, Washington, DC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
864999
Patent Number(s):
4447743
Application Number:
06/372,861
Assignee:
The United States of America as represented by the United States Department of Energy (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
DOE Contract Number:  
AI22-80PC30258
Resource Type:
Patent
Resource Relation:
Patent File Date: 1982 Apr 28
Country of Publication:
United States
Language:
English
Subject:
pressure; liquid; level; monitor; tracking; coal; slurry; high-pressure; vessel; including; toroidal-shaped; float; magnetically; permeable; bands; thereon; disposed; pairs; magnetic; field; generators; detectors; outside; adjacent; top; bottom; coupled; signal; processing; circuitry; combining; signals; generating; monotonically; increasing; analog; control; function; utilized; operate; valves; associated; processes; processing circuitry; control valves; magnetically permeable; signal processing; control signal; pressure vessel; magnetic field; liquid level; coal slurry; control valve; magnetically coupled; pressure liquid; disposed outside; high-pressure vessel; pressure control; signal process; field generator; valves associated; vessel including; field generators; level monitor; /307/73/137/324/340/

Citation Formats

Bean, Vern E., and Long, Frederick G. High pressure liquid level monitor. United States: N. p., 1984. Web.
Bean, Vern E., & Long, Frederick G. High pressure liquid level monitor. United States.
Bean, Vern E., and Long, Frederick G. Sun . "High pressure liquid level monitor". United States. https://www.osti.gov/servlets/purl/864999.
@article{osti_864999,
title = {High pressure liquid level monitor},
author = {Bean, Vern E. and Long, Frederick G.},
abstractNote = {A liquid level monitor for tracking the level of a coal slurry in a high-pressure vessel including a toroidal-shaped float with magnetically permeable bands thereon disposed within the vessel, two pairs of magnetic field generators and detectors disposed outside the vessel adjacent the top and bottom thereof and magnetically coupled to the magnetically permeable bands on the float, and signal processing circuitry for combining signals from the top and bottom detectors for generating a monotonically increasing analog control signal which is a function of liquid level. The control signal may be utilized to operate high-pressure control valves associated with processes in which the high-pressure vessel is used.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}