CA2439493A1 - Limnimetre a bulles et methode associee - Google Patents

Limnimetre a bulles et methode associee Download PDF

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Publication number
CA2439493A1
CA2439493A1 CA002439493A CA2439493A CA2439493A1 CA 2439493 A1 CA2439493 A1 CA 2439493A1 CA 002439493 A CA002439493 A CA 002439493A CA 2439493 A CA2439493 A CA 2439493A CA 2439493 A1 CA2439493 A1 CA 2439493A1
Authority
CA
Canada
Prior art keywords
tube
sensor
level meter
bubble level
pressure
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.)
Granted
Application number
CA002439493A
Other languages
English (en)
Other versions
CA2439493C (fr
Inventor
Claude Bouchard
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.)
Hydro Quebec
Original Assignee
Individual
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
Priority claimed from CA002340139A external-priority patent/CA2340139A1/fr
Application filed by Individual filed Critical Individual
Priority to CA002439493A priority Critical patent/CA2439493C/fr
Publication of CA2439493A1 publication Critical patent/CA2439493A1/fr
Application granted granted Critical
Publication of CA2439493C publication Critical patent/CA2439493C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • G01F23/14—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 measurement of pressure
    • G01F23/16—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid
    • G01F23/165—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid of bubbler type
    • G01F23/168—Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid of bubbler type with electric indicating or recording
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

Un limnimètre à bulles ayant un tube pneumatique (2) relié à un générateur d e gaz (12) et à un capteur de pression (14). Une valve de déviation (16) est interposée le long du tube pneumatique, permettant de dévier la sortie d'air à une hauteur prédéterminée de la sortie inférieure habituelle (8) du tube. Un circuit de contrôle (20) commande la valve de déviation et le générateur de gaz en fonction de consignes préréglées, traite les mesures de pression obtenues du capteur de pression, vérifie l'étalonnage du capteur en fonction des mesures et de la différence de hauteur entre les sorties du tube, et génère des données de niveau en fonction des mesures de pression traitées et du coefficient d'étalonage. Une autre valve (28) interposée entre le capteur (14) et le tube (2) et sous contrôle du circuit de contrôle (20), permet de considérer la dérive possible du capteur.
CA002439493A 2001-03-08 2002-02-26 Limnimetre a bulles et methode associee Expired - Fee Related CA2439493C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002439493A CA2439493C (fr) 2001-03-08 2002-02-26 Limnimetre a bulles et methode associee

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CA2,340,139 2001-03-08
CA002340139A CA2340139A1 (fr) 2001-03-08 2001-03-08 Dispositif d'autoverification d'un appareil de mesure de niveau bulle a bulle
CA002439493A CA2439493C (fr) 2001-03-08 2002-02-26 Limnimetre a bulles et methode associee
PCT/CA2002/000251 WO2002071006A1 (fr) 2001-03-08 2002-02-26 Limnimetre a bulles et methode associee

Publications (2)

Publication Number Publication Date
CA2439493A1 true CA2439493A1 (fr) 2002-09-12
CA2439493C CA2439493C (fr) 2008-07-08

Family

ID=29271297

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002439493A Expired - Fee Related CA2439493C (fr) 2001-03-08 2002-02-26 Limnimetre a bulles et methode associee

Country Status (1)

Country Link
CA (1) CA2439493C (fr)

Also Published As

Publication number Publication date
CA2439493C (fr) 2008-07-08

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MKLA Lapsed

Effective date: 20210831

MKLA Lapsed

Effective date: 20200226