FR2436372A1 - Dispositif de controle du niveau d'un materiau fluide contenu dans un reservoir vertical - Google Patents

Dispositif de controle du niveau d'un materiau fluide contenu dans un reservoir vertical

Info

Publication number
FR2436372A1
FR2436372A1 FR7826246A FR7826246A FR2436372A1 FR 2436372 A1 FR2436372 A1 FR 2436372A1 FR 7826246 A FR7826246 A FR 7826246A FR 7826246 A FR7826246 A FR 7826246A FR 2436372 A1 FR2436372 A1 FR 2436372A1
Authority
FR
France
Prior art keywords
fluid
monitoring device
ultrasonic transducers
indicator lights
level monitoring
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
FR7826246A
Other languages
English (en)
Other versions
FR2436372B1 (fr
Inventor
Robert Gagno
Jean-Claude Dauvergne
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.)
Nokia Inc
Original Assignee
Nokia Inc
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 Nokia Inc filed Critical Nokia Inc
Priority to FR7826246A priority Critical patent/FR2436372A1/fr
Publication of FR2436372A1 publication Critical patent/FR2436372A1/fr
Application granted granted Critical
Publication of FR2436372B1 publication Critical patent/FR2436372B1/fr
Granted 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
    • G01F23/28—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 the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2966—Acoustic waves making use of acoustical resonance or standing waves
    • G01F23/2967—Acoustic waves making use of acoustical resonance or standing waves for discrete levels

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

L'invention concerne un dispositif de contrôle du niveau d'un matériau fluide contenu dans un réservoir verticaL Ce dispositif comporte des transducteurs électromécaniques ultrasonores 9, 10, 11, 12 fixés dans la paroi du réservoir 1 et un circuit de signalisation 29, 31 sensible au courant d'alimentation des transducteurs. Application au stockage des poudres
FR7826246A 1978-09-13 1978-09-13 Dispositif de controle du niveau d'un materiau fluide contenu dans un reservoir vertical Granted FR2436372A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7826246A FR2436372A1 (fr) 1978-09-13 1978-09-13 Dispositif de controle du niveau d'un materiau fluide contenu dans un reservoir vertical

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7826246A FR2436372A1 (fr) 1978-09-13 1978-09-13 Dispositif de controle du niveau d'un materiau fluide contenu dans un reservoir vertical

Publications (2)

Publication Number Publication Date
FR2436372A1 true FR2436372A1 (fr) 1980-04-11
FR2436372B1 FR2436372B1 (fr) 1981-02-13

Family

ID=9212590

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7826246A Granted FR2436372A1 (fr) 1978-09-13 1978-09-13 Dispositif de controle du niveau d'un materiau fluide contenu dans un reservoir vertical

Country Status (1)

Country Link
FR (1) FR2436372A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572519A1 (fr) * 1984-10-25 1986-05-02 Jaeger Detecteur de niveau a transducteur electro-mecanique
US5036703A (en) * 1989-02-23 1991-08-06 Eriksson Bror Allan Method and apparatus for testing liquid fillings in tanks
WO1995029388A1 (fr) * 1994-04-25 1995-11-02 Sensor Systems (Jersey) Limited Systemes de detection piezo-electriques
US6044694A (en) * 1996-08-28 2000-04-04 Videojet Systems International, Inc. Resonator sensors employing piezoelectric benders for fluid property sensing
CN110487357A (zh) * 2019-09-11 2019-11-22 广州秀明环保科技有限公司 一种非接触式超声波液位监测仪和液位高度感应方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110890A (en) * 1958-03-03 1963-11-12 Vernon C Westcott Apparatus for measuring fluid level
GB988576A (en) * 1960-07-25 1965-04-07 Ici Australia Ltd Apparatus for detecting or controlling the level of material in a container
GB1036817A (en) * 1964-02-29 1966-07-20 Witton Electronics Ltd Sensing device
FR2012618A1 (fr) * 1968-07-10 1970-03-20 Endress Et Hauser
DE1673972A1 (de) * 1968-03-16 1972-01-20 Lehmann Walter Verfahren zur Anzeige der Veraenderungen sonst stabiler Zustaende an einem festen Ort
GB1512233A (en) * 1974-03-20 1978-05-24 Matsushita Electric Industrial Co Ltd Piezoelectric presence sensitive apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110890A (en) * 1958-03-03 1963-11-12 Vernon C Westcott Apparatus for measuring fluid level
GB988576A (en) * 1960-07-25 1965-04-07 Ici Australia Ltd Apparatus for detecting or controlling the level of material in a container
GB1036817A (en) * 1964-02-29 1966-07-20 Witton Electronics Ltd Sensing device
DE1673972A1 (de) * 1968-03-16 1972-01-20 Lehmann Walter Verfahren zur Anzeige der Veraenderungen sonst stabiler Zustaende an einem festen Ort
FR2012618A1 (fr) * 1968-07-10 1970-03-20 Endress Et Hauser
GB1512233A (en) * 1974-03-20 1978-05-24 Matsushita Electric Industrial Co Ltd Piezoelectric presence sensitive apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572519A1 (fr) * 1984-10-25 1986-05-02 Jaeger Detecteur de niveau a transducteur electro-mecanique
US5036703A (en) * 1989-02-23 1991-08-06 Eriksson Bror Allan Method and apparatus for testing liquid fillings in tanks
WO1995029388A1 (fr) * 1994-04-25 1995-11-02 Sensor Systems (Jersey) Limited Systemes de detection piezo-electriques
GB2302178A (en) * 1994-04-25 1997-01-08 Sensor Systems Piezoelectric sensing systems
GB2302178B (en) * 1994-04-25 1998-04-29 Sensor Systems Piezoelectric sensing systems
US6044694A (en) * 1996-08-28 2000-04-04 Videojet Systems International, Inc. Resonator sensors employing piezoelectric benders for fluid property sensing
CN110487357A (zh) * 2019-09-11 2019-11-22 广州秀明环保科技有限公司 一种非接触式超声波液位监测仪和液位高度感应方法

Also Published As

Publication number Publication date
FR2436372B1 (fr) 1981-02-13

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