GB792484A - Improvements in or relating to liquid level indicator - Google Patents

Improvements in or relating to liquid level indicator

Info

Publication number
GB792484A
GB792484A GB3524355A GB3524355A GB792484A GB 792484 A GB792484 A GB 792484A GB 3524355 A GB3524355 A GB 3524355A GB 3524355 A GB3524355 A GB 3524355A GB 792484 A GB792484 A GB 792484A
Authority
GB
United Kingdom
Prior art keywords
container
capacitor
plates
welded
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3524355A
Inventor
Dean C Dye
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aro Equipment Corp
Original Assignee
Aro Equipment Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aro Equipment Corp filed Critical Aro Equipment Corp
Priority to GB3524355A priority Critical patent/GB792484A/en
Publication of GB792484A publication Critical patent/GB792484A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/268—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors mounting arrangements of probes

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

792,484. Capacitor-type level gauges. ARO EQUIPMENT CORPORATION. Dec. 8, 1955, No. 35243/55. Class 37. A'capacitor used to indicate the level of liquid, particularly liquid that must be maintained at high-pressure or low temperature, e.g. a liquefied gas, in a container, has three parallel plates similar in shape to the vertical cross-section of the container, to prevent inaccuracy of indicator readings due to distortion of capacitor plates or to non-linearity of the cross-sectional shape of the container. As shown, the capacitor is mounted within an ellipsoidal container which is constructed in two halves and is enclosed in an evacuated shell. Projections 30 on the periphery of the outer plates 16, 20 are welded to the interior of one half of the container before the second half is welded to the first half. The central plate 18 is connected to an oscillator circuit including a recording instrument by a conductor 37 introduced into the container, preferably through a plug 31 (Fig. 3), which is screwed into the bottom of the container. The plates are insulated from one another by dielectric spacer elements 22, 24 (Fig. 4) or similar devices.
GB3524355A 1955-12-08 1955-12-08 Improvements in or relating to liquid level indicator Expired GB792484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3524355A GB792484A (en) 1955-12-08 1955-12-08 Improvements in or relating to liquid level indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3524355A GB792484A (en) 1955-12-08 1955-12-08 Improvements in or relating to liquid level indicator

Publications (1)

Publication Number Publication Date
GB792484A true GB792484A (en) 1958-03-26

Family

ID=10375507

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3524355A Expired GB792484A (en) 1955-12-08 1955-12-08 Improvements in or relating to liquid level indicator

Country Status (1)

Country Link
GB (1) GB792484A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127552A (en) * 1982-09-10 1984-04-11 Nissan Motor Liquid quantity sensor of capacitor type and method of producing same
EP0530102A1 (en) * 1991-08-30 1993-03-03 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Container having integrated liquid level detection means
EP1808678A1 (en) * 2006-01-17 2007-07-18 Wacker Corporation Capacitance-based fluid level sensor
EP2759812A1 (en) * 2013-01-29 2014-07-30 Rechner Industrie-Elektronik GmbH Method and apparatus for capacitative fill level measurement of liquids or bulk materials

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127552A (en) * 1982-09-10 1984-04-11 Nissan Motor Liquid quantity sensor of capacitor type and method of producing same
US4519012A (en) * 1982-09-10 1985-05-21 Nissan Motor Company, Limited Liquid quantity sensor of capacitor type and method of producing same
EP0530102A1 (en) * 1991-08-30 1993-03-03 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Container having integrated liquid level detection means
FR2680767A1 (en) * 1991-08-30 1993-03-05 Air Liquide CONTAINER COMPRISING MEANS FOR DETECTING LIQUID LEVEL IN THE CONTAINER.
US5230439A (en) * 1991-08-30 1993-07-27 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Container having therein means for detecting levels of liquid
EP1808678A1 (en) * 2006-01-17 2007-07-18 Wacker Corporation Capacitance-based fluid level sensor
US7475665B2 (en) 2006-01-17 2009-01-13 Wacker Neuson Corporation Capacitance-based fluid level sensor
EP2759812A1 (en) * 2013-01-29 2014-07-30 Rechner Industrie-Elektronik GmbH Method and apparatus for capacitative fill level measurement of liquids or bulk materials
US9429461B2 (en) 2013-01-29 2016-08-30 Rechner Industrie-Elektronik Gmbh Method and device for capacitive fill level measurement of liquids or bulk materials
AU2014200452B2 (en) * 2013-01-29 2017-11-23 Rechner Industrie-Elektronik Gmbh Method and apparatus for capacitive fill level measurement of liquids or bulk materials

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