BR9710598A - Sistema de medi-Æo piezel-trica de l¡quido - Google Patents

Sistema de medi-Æo piezel-trica de l¡quido

Info

Publication number
BR9710598A
BR9710598A BR9710598A BR9710598A BR9710598A BR 9710598 A BR9710598 A BR 9710598A BR 9710598 A BR9710598 A BR 9710598A BR 9710598 A BR9710598 A BR 9710598A BR 9710598 A BR9710598 A BR 9710598A
Authority
BR
Brazil
Prior art keywords
liquid
piezo
measuring system
liquid measuring
liquid liquid
Prior art date
Application number
BR9710598A
Other languages
English (en)
Inventor
Denis Denneulin
Gil Ching
Original Assignee
Marwal Systems
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 Marwal Systems filed Critical Marwal Systems
Publication of BR9710598A publication Critical patent/BR9710598A/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
    • 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
    • G01F23/2962—Measuring transit time of reflected waves
    • 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)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
BR9710598A 1996-07-26 1997-07-24 Sistema de medi-Æo piezel-trica de l¡quido BR9710598A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9609434A FR2751744B1 (fr) 1996-07-26 1996-07-26 Dispositif piezo-electrique de jaugeage de liquide
PCT/FR1997/001384 WO1998004889A1 (fr) 1996-07-26 1997-07-24 Dispositif piezo-electrique de jaugeage de liquide

Publications (1)

Publication Number Publication Date
BR9710598A true BR9710598A (pt) 1999-08-17

Family

ID=9494517

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9710598A BR9710598A (pt) 1996-07-26 1997-07-24 Sistema de medi-Æo piezel-trica de l¡quido

Country Status (8)

Country Link
EP (1) EP0914594B1 (pt)
JP (1) JP2000515974A (pt)
CN (1) CN1228835A (pt)
AR (1) AR008007A1 (pt)
BR (1) BR9710598A (pt)
DE (1) DE69721998T2 (pt)
FR (1) FR2751744B1 (pt)
WO (1) WO1998004889A1 (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2788851B1 (fr) 1999-01-26 2001-04-13 Marwal Systems Dispositif piezo-electrique de mesure de niveau de liquide
DE19942379A1 (de) 1999-09-04 2001-03-08 Mannesmann Vdo Ag Vorrichtung zur Messung eines Füllstandes einer Flüssigkeit in einem Behälter
FR2807472B1 (fr) * 2000-04-07 2002-10-25 Peugeot Citroen Automobiles Sa Systeme d'aide a la regeneration d'un filtre a particules integre dans une ligne d'echappement d'un moteur diesel de vehicule automobile
JP2002131298A (ja) * 2000-10-23 2002-05-09 Ngk Spark Plug Co Ltd 液体レベル劣化検出装置
US6993967B2 (en) * 2002-07-12 2006-02-07 Ti Group Automotive Systems, L.L.C. Fluid level sensor
US6925869B2 (en) * 2003-01-28 2005-08-09 The Boeing Company Ultrasonic fuel-gauging system
DE10350084B4 (de) * 2003-10-27 2016-05-19 Continental Automotive Gmbh Sensoreinrichtung zum Erfassen eines Füllstands und Verfahren zum Betreiben der Sensoreinrichtung
GB0402744D0 (en) * 2004-02-07 2004-03-10 Smiths Group Plc Fluid-gauging probes
BR112013014968A2 (pt) * 2010-12-16 2016-09-13 Grieshaber Vega Kg determinação de propriedades dos meios durante a medição do nível de enchimento
US8813559B2 (en) 2010-12-16 2014-08-26 Vega Grieshaber Kg Determination of media characteristics in fill-level measuring
DE102018202209B3 (de) * 2018-02-13 2019-05-29 Continental Automotive Gmbh Vorrichtung zum Bestimmen einer Höhe und/oder Qualität eines Fluids in einem Fluidbehälter
CN111189513B (zh) * 2020-01-09 2021-06-29 泰华智慧产业集团股份有限公司 一种超声波液位测量方法、装置及超声波液位计

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753542A (en) * 1953-09-03 1956-07-03 Bogue Elec Mfg Co Calibrated apparatus for measuring liquid levels
US4268912A (en) * 1978-06-06 1981-05-19 Magnavox Government And Industrial Electronics Co. Directional hydrophone suitable for flush mounting
US4476711A (en) * 1983-04-21 1984-10-16 General Motors Corporation Combined vibration and temperature sensor
EP0138541A1 (en) * 1983-10-06 1985-04-24 Lucas Kienzle Instruments Limited Liquid level measurement
US4656384A (en) * 1984-10-25 1987-04-07 Siemens Aktiengesellschaft Ultrasonic detection sensor in hybrid structure with appertaining electronic circuit
US4709360A (en) * 1985-11-12 1987-11-24 Sparton Corporation Hydrophone transducer with negative feedback system
DE3706453A1 (de) * 1987-02-27 1988-09-08 Bayerische Motoren Werke Ag Fuellstandsgeber fuer kraftfahrzeuge
DE3724411A1 (de) * 1987-07-23 1989-02-02 Messerschmitt Boelkow Blohm Vorrichtung zum kontinuierlichen messen des fuellstandes
DE59009904D1 (de) * 1989-08-22 1996-01-04 Siemens Ag Messeinrichtung und verfahren zur bestimmung des füllstandes in flüssigkeitsbehältern, vorzugsweise für tankanlagen.
US5095748A (en) * 1990-08-06 1992-03-17 Tidel Engineering, Inc. Sonic tank monitoring system

Also Published As

Publication number Publication date
CN1228835A (zh) 1999-09-15
FR2751744A1 (fr) 1998-01-30
FR2751744B1 (fr) 1998-10-23
DE69721998D1 (de) 2003-06-18
WO1998004889A1 (fr) 1998-02-05
JP2000515974A (ja) 2000-11-28
DE69721998T2 (de) 2004-01-22
EP0914594B1 (fr) 2003-05-14
EP0914594A1 (fr) 1999-05-12
AR008007A1 (es) 1999-11-24

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Legal Events

Date Code Title Description
B09B Decision: refusal

Free format text: INDEFIRO O PEDIDO DE PATENTE COM BASE NO ARTIGO 8O COMBINADO COM O ARTIGO 13O DA LPI.