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:
- Research Org.:
- Originating Research Org. not identified
- 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}
}