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Title: Liquid-level sensing device

Abstract

This invention relates to a device for sensing the level of a liquid while preventing the deposition and accumulation of materials on the exterior surfaces thereof. Two dissimilar metal wires are enclosed within an electrical insulating material, the wires being joined together at one end to form a thermocouple junction outside the insulating material. Heating means is disposed within the electrical insulating material and maintains the device at a temperature substantially greater than that of the environment surrounding the device, the heating means being electrically insulated from the two dissimilar thermocouple wires. In addition, a metal sheath surrounds and contacts both the electrical insulating material and the thermocouple junction. Electrical connections are provided for connecting the heating means with a power source and for connecting the thermocouple wires with a device for sensing the electrical potential across the thermocouple junction. (auth)

Inventors:
Issue Date:
OSTI Identifier:
4155483
Patent Number(s):
3905243
Assignee:
to U.S. Energy Research and Development Administration
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL
NSA Number:
NSA-33-011274
Resource Type:
Patent
Resource Relation:
Patent File Date: 1973 Sep 11; Other Information: G01F23/22; H01L35/00. Orig. Receipt Date: 30-JUN-76
Country of Publication:
United States
Language:
English
Subject:
N77500* -Reactors-Power Reactors, Breeding; N46400 - Instrumentation-Miscellaneous Instruments; 210500* -Nuclear Power Plants-Power Reactors, Breeding; *LEVEL INDICATORS- DESIGN; *LIQUID METAL COOLED REACTORS- LEVEL INDICATORS; *LIQUID METALS- LEVELS; ELECTRICAL INSULATION; HEATING; LIQUIDS; SODIUM; THERMOCOUPLES

Citation Formats

Goldfuss, G T. Liquid-level sensing device. United States: N. p., 1975. Web.
Goldfuss, G T. Liquid-level sensing device. United States.
Goldfuss, G T. Tue . "Liquid-level sensing device". United States.
@article{osti_4155483,
title = {Liquid-level sensing device},
author = {Goldfuss, G T},
abstractNote = {This invention relates to a device for sensing the level of a liquid while preventing the deposition and accumulation of materials on the exterior surfaces thereof. Two dissimilar metal wires are enclosed within an electrical insulating material, the wires being joined together at one end to form a thermocouple junction outside the insulating material. Heating means is disposed within the electrical insulating material and maintains the device at a temperature substantially greater than that of the environment surrounding the device, the heating means being electrically insulated from the two dissimilar thermocouple wires. In addition, a metal sheath surrounds and contacts both the electrical insulating material and the thermocouple junction. Electrical connections are provided for connecting the heating means with a power source and for connecting the thermocouple wires with a device for sensing the electrical potential across the thermocouple junction. (auth)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1975},
month = {9}
}