DE69300128T2 - Verfahren und Vorrichtung zur Flüssigkeitsoberflächenermittlung unter Anwendung eines Ultraschallwandlers. - Google Patents

Verfahren und Vorrichtung zur Flüssigkeitsoberflächenermittlung unter Anwendung eines Ultraschallwandlers.

Info

Publication number
DE69300128T2
DE69300128T2 DE69300128T DE69300128T DE69300128T2 DE 69300128 T2 DE69300128 T2 DE 69300128T2 DE 69300128 T DE69300128 T DE 69300128T DE 69300128 T DE69300128 T DE 69300128T DE 69300128 T2 DE69300128 T2 DE 69300128T2
Authority
DE
Germany
Prior art keywords
determining
ultrasonic transducer
liquid surface
liquid
transducer
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 - Fee Related
Application number
DE69300128T
Other languages
English (en)
Other versions
DE69300128D1 (de
Inventor
Mark Paulsen
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.)
Bio Rad Innovations SAS
Original Assignee
Pasteur Sanofi Diagnostics SA
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 Pasteur Sanofi Diagnostics SA filed Critical Pasteur Sanofi Diagnostics SA
Application granted granted Critical
Publication of DE69300128D1 publication Critical patent/DE69300128D1/de
Publication of DE69300128T2 publication Critical patent/DE69300128T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • 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
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02836—Flow rate, liquid level

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
DE69300128T 1992-07-20 1993-07-16 Verfahren und Vorrichtung zur Flüssigkeitsoberflächenermittlung unter Anwendung eines Ultraschallwandlers. Expired - Fee Related DE69300128T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/917,205 US5428997A (en) 1992-07-20 1992-07-20 Method of and device for fluid surface detection using an ultrasonic transducer

Publications (2)

Publication Number Publication Date
DE69300128D1 DE69300128D1 (de) 1995-06-01
DE69300128T2 true DE69300128T2 (de) 1995-09-28

Family

ID=25438487

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69300128T Expired - Fee Related DE69300128T2 (de) 1992-07-20 1993-07-16 Verfahren und Vorrichtung zur Flüssigkeitsoberflächenermittlung unter Anwendung eines Ultraschallwandlers.

Country Status (6)

Country Link
US (1) US5428997A (de)
EP (1) EP0580483B1 (de)
JP (1) JPH06167375A (de)
AU (1) AU669175B2 (de)
CA (1) CA2100807A1 (de)
DE (1) DE69300128T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10242970A1 (de) * 2002-09-17 2004-04-01 Vega Grieshaber Kg Vibrations-Füllstandssensor

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9408176D0 (en) * 1994-04-25 1994-06-15 Interface Devices Distribution Fluid level detectors
EP0732598B1 (de) * 1995-03-15 2001-05-16 SANYO ELECTRIC Co., Ltd. Ultraschallsensor und Pipettiervorrichtung, die diesen verwendet
DE19720519C2 (de) * 1997-05-16 2000-03-30 Pepperl & Fuchs Vorrichtung zur Feststellung und/oder Überwachung eines Füllstandes eines Mediums in einem Behälter
CA2658772C (en) 2000-02-29 2013-07-30 Gen-Probe Incorporated Fluid dispense and liquid surface verification system and method
DE10132530A1 (de) 2001-07-09 2003-01-30 Evotec Ag Verfahren zur Überwachung der Funktionsfähigkeit einer Flüssigkeitsfördervorrichtung und Flüssigkeitsfördervorrichtung
DE10360526A1 (de) 2003-12-22 2005-07-14 Roche Diagnostics Gmbh Reagenzkassette mit Reagenzbehälter für partikelhaltiges Reagenz für dessen noninvasive Homogenisierung
DE102008009626A1 (de) * 2008-02-18 2009-08-27 Advalytix Ag Verfahren zur Zustandsüberprüfung einer Pipette, Pipettierverfahren, Pipettiervorrichtung und Saugrohr für eine Pipettiervorrichtung
US7804599B2 (en) * 2008-07-24 2010-09-28 MGM Instruments, Inc. Fluid volume verification system
US10072927B2 (en) 2016-01-07 2018-09-11 Rarecyte, Inc. Detecting a substrate

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5610792A (en) * 1979-07-06 1981-02-03 Taga Denki Kk Method and circuit for driving ultrasonic-wave converter
GB2084322B (en) * 1980-09-18 1984-08-30 Avery Hardoll Ltd Fluid measuring system
US4540981A (en) * 1981-10-29 1985-09-10 Edo Western Corporation Method and apparatus for detecting the presence of liquid
JPS5916572A (ja) * 1982-07-21 1984-01-27 多賀電気株式会社 超音波変換器駆動装置の駆動周波数制御方法
DE139753T1 (de) * 1983-04-04 1986-11-27 Sumitomo Bakelite Co. Ltd., Tokio/Tokyo Ultraschall-oszillator.
US4445064A (en) * 1983-04-25 1984-04-24 E. I. Du Pont De Nemours And Company Self resonant power supply for electro-acoustical transducer
US4578650A (en) * 1983-06-15 1986-03-25 Watson Industries, Inc. Resonance drive oscillator circuit
US4641053A (en) * 1984-08-14 1987-02-03 Matsushita Seiko Co., Ltd. Ultrasonic liquid atomizer with an improved soft start circuit
EP0209872A3 (de) * 1985-07-22 1988-07-27 E.I. Du Pont De Nemours And Company Verfahren und Gerät zur Grenzschichtdetektion mittels Ultraschall
JPS62294915A (ja) * 1986-06-13 1987-12-22 Matsushita Electric Ind Co Ltd 水位検知装置
US4754186A (en) * 1986-12-23 1988-06-28 E. I. Du Pont De Nemours And Company Drive network for an ultrasonic probe
NL8801836A (nl) * 1988-07-20 1990-02-16 Enraf Nonius Delft Inrichting voor het bepalen van het niveau van het grensvlak tussen een eerste en een tweede medium in een reservoir.
US4937466A (en) * 1988-09-29 1990-06-26 Ball Corporation Remote as signal attenuator
US4977786A (en) * 1990-01-18 1990-12-18 E. I. Du Pont De Nemours And Company Capacitive liquid level sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10242970A1 (de) * 2002-09-17 2004-04-01 Vega Grieshaber Kg Vibrations-Füllstandssensor

Also Published As

Publication number Publication date
AU4192493A (en) 1994-01-27
EP0580483A1 (de) 1994-01-26
US5428997A (en) 1995-07-04
JPH06167375A (ja) 1994-06-14
AU669175B2 (en) 1996-05-30
DE69300128D1 (de) 1995-06-01
EP0580483B1 (de) 1995-04-26
CA2100807A1 (en) 1994-01-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee