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Title: Pressure sensor for high-temperature liquids

Abstract

A pressure sensor for use in measuring pressures in liquid at high temperatures, especially such as liquid sodium or liquid potassium, comprises a soft diaphragm in contact with the liquid. The soft diaphragm is coupled mechanically to a stiff diaphragm. Pressure is measured by measuring the displacment of both diaphragms, typically by measuring the capacitance between the stiff diaphragm and a fixed plate when the stiff diaphragm is deflected in response to the measured pressure through mechanical coupling from the soft diaphragm. Absolute calibration is achieved by admitting gas under pressure to the region between diaphragms and to the region between the stiff diaphragm and the fixed plate, breaking the coupling between the soft and stiff diaphragms. The apparatus can be calibrated rapidly and absolutely.

Inventors:
 [1]
  1. Westmont, IL
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
863146
Patent Number(s):
4103555
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
pressure; sensor; high-temperature; liquids; measuring; pressures; liquid; temperatures; especially; sodium; potassium; comprises; soft; diaphragm; contact; coupled; mechanically; stiff; measured; displacment; diaphragms; typically; capacitance; fixed; plate; deflected; response; mechanical; coupling; absolute; calibration; achieved; admitting; gas; region; breaking; apparatus; calibrated; rapidly; absolutely; liquid sodium; pressure sensor; soft diaphragm; measured pressure; mechanical coupling; temperature liquid; measuring pressures; measuring pressure; temperature liquids; /73/

Citation Formats

Forster, George A. Pressure sensor for high-temperature liquids. United States: N. p., 1978. Web.
Forster, George A. Pressure sensor for high-temperature liquids. United States.
Forster, George A. Sun . "Pressure sensor for high-temperature liquids". United States. https://www.osti.gov/servlets/purl/863146.
@article{osti_863146,
title = {Pressure sensor for high-temperature liquids},
author = {Forster, George A},
abstractNote = {A pressure sensor for use in measuring pressures in liquid at high temperatures, especially such as liquid sodium or liquid potassium, comprises a soft diaphragm in contact with the liquid. The soft diaphragm is coupled mechanically to a stiff diaphragm. Pressure is measured by measuring the displacment of both diaphragms, typically by measuring the capacitance between the stiff diaphragm and a fixed plate when the stiff diaphragm is deflected in response to the measured pressure through mechanical coupling from the soft diaphragm. Absolute calibration is achieved by admitting gas under pressure to the region between diaphragms and to the region between the stiff diaphragm and the fixed plate, breaking the coupling between the soft and stiff diaphragms. The apparatus can be calibrated rapidly and absolutely.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

Patent:

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