CA2202004A1 - Detecteur de niveau pour solides - Google Patents

Detecteur de niveau pour solides

Info

Publication number
CA2202004A1
CA2202004A1 CA 2202004 CA2202004A CA2202004A1 CA 2202004 A1 CA2202004 A1 CA 2202004A1 CA 2202004 CA2202004 CA 2202004 CA 2202004 A CA2202004 A CA 2202004A CA 2202004 A1 CA2202004 A1 CA 2202004A1
Authority
CA
Canada
Prior art keywords
solids
assembly
transducer
threshold level
amplitude
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.)
Abandoned
Application number
CA 2202004
Other languages
English (en)
Inventor
Jean-Pierre Pawliw
Bogdan Cherek
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.)
Siemens Canada Ltd
Original Assignee
Milltronics Ltd
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 Milltronics Ltd filed Critical Milltronics Ltd
Priority to CA 2202004 priority Critical patent/CA2202004A1/fr
Publication of CA2202004A1 publication Critical patent/CA2202004A1/fr
Abandoned 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
    • 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
    • G01F23/2968—Transducers specially adapted for acoustic level indicators

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)
CA 2202004 1997-04-07 1997-04-07 Detecteur de niveau pour solides Abandoned CA2202004A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2202004 CA2202004A1 (fr) 1997-04-07 1997-04-07 Detecteur de niveau pour solides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2202004 CA2202004A1 (fr) 1997-04-07 1997-04-07 Detecteur de niveau pour solides

Publications (1)

Publication Number Publication Date
CA2202004A1 true CA2202004A1 (fr) 1998-10-07

Family

ID=4160356

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2202004 Abandoned CA2202004A1 (fr) 1997-04-07 1997-04-07 Detecteur de niveau pour solides

Country Status (1)

Country Link
CA (1) CA2202004A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2943414A1 (fr) * 2009-03-23 2010-09-24 Ijinus Procede de mesure d'un niveau de produit dans un contenant et capteur pour la mise en oeuvre du procede

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2943414A1 (fr) * 2009-03-23 2010-09-24 Ijinus Procede de mesure d'un niveau de produit dans un contenant et capteur pour la mise en oeuvre du procede

Similar Documents

Publication Publication Date Title
US5035140A (en) Self cleaning liquid level detector
CA2234627C (fr) Methode et dispositif utilisant le temps de propagation d'impulsions pour detecter le trop-plein de liquide dans un vaisseau
US2280226A (en) Flaw detecting device and measuring instrument
JP3008991B2 (ja) 振動式レベル検出装置
JP4077046B2 (ja) 超音波液面検出器
US5966983A (en) Assembly for sensing and/or monitoring a predetermined level in a vessel
US4740726A (en) Vibrator-type level sensor
US5748562A (en) Level detector for solids
US6073492A (en) Ultrasonic sensor for very high temperatures and pressures
US10551238B2 (en) Ultrasonic level sensor for aerated fluids
US5269188A (en) Continuous self test time gate ultrasonic sensor and method
US10247596B2 (en) Level measurement device
US5943294A (en) Level detector for fluent material
JPH08504038A (ja) 容器内の所定の充填レベルの検出および／または監視方法および装置
EP0853236A1 (fr) Détecteur de fluide
EP0596966A1 (fr) Detecteur ultrasonique a selection temporelle et procede d'utilisation dudit detecteur
CA2188547A1 (fr) Systemes de detection piezo-electriques
US6263731B1 (en) Method and assembly for monitoring a predetermined level in a container
GB2351805A (en) Level detector for fluent material
US4628951A (en) Liquid level detection system for high temperature or pressure environments
US5128656A (en) Level detecting method and its apparatus
CA2277595A1 (fr) Detecteur de niveau pour matiere fluide
US4361041A (en) Non-intrusive ultrasonic liquid-in-line detector for small diameter tubes
JP2005083752A (ja) 破断音センサ
RU2808712C1 (ru) Сигнализатор уровня

Legal Events

Date Code Title Description
EEER Examination request
FZDE Dead