FR2435707A1 - Dispositif de mesure de la densite d'un liquide - Google Patents

Dispositif de mesure de la densite d'un liquide

Info

Publication number
FR2435707A1
FR2435707A1 FR7920275A FR7920275A FR2435707A1 FR 2435707 A1 FR2435707 A1 FR 2435707A1 FR 7920275 A FR7920275 A FR 7920275A FR 7920275 A FR7920275 A FR 7920275A FR 2435707 A1 FR2435707 A1 FR 2435707A1
Authority
FR
France
Prior art keywords
liquid
density
measuring
resonant frequency
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.)
Granted
Application number
FR7920275A
Other languages
English (en)
Other versions
FR2435707B1 (fr
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Publication of FR2435707A1 publication Critical patent/FR2435707A1/fr
Application granted granted Critical
Publication of FR2435707B1 publication Critical patent/FR2435707B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

Dispositif de mesure de la densité d'un liquide comprenant une roue à ailettes 7 vibrant en torsion à une fréquence de résonance et immergée dans le liquide. La fréquence de résonance (correspondant en général au mode fondamental) obtenue est une fonction de la densité du liquide. Un circuit de rétroaction 31, 32, 33 permet de faire varier la fréquence d'un oscillateur qui alimente un transducteur 5 engendrant les vibrations et de trouver automatiquement la fréquence de résonance. Un capteur 6 qui détecte l'amplitude des oscillations et le transducteur sont disposés, au-dessus du niveau du liquide, à une extrémité d'une tige 2, pourvue à son autre extrémité de la roue à ailettes.
FR7920275A 1978-08-09 1979-08-08 Dispositif de mesure de la densite d'un liquide Expired FR2435707B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7832803A GB2027539B (en) 1978-08-09 1978-08-09 Measurement of the density of liquids

Publications (2)

Publication Number Publication Date
FR2435707A1 true FR2435707A1 (fr) 1980-04-04
FR2435707B1 FR2435707B1 (fr) 1985-06-28

Family

ID=10498956

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7920275A Expired FR2435707B1 (fr) 1978-08-09 1979-08-08 Dispositif de mesure de la densite d'un liquide

Country Status (4)

Country Link
US (1) US4240285A (fr)
DE (2) DE2857924C2 (fr)
FR (1) FR2435707B1 (fr)
GB (1) GB2027539B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0297032A1 (fr) * 1987-06-12 1988-12-28 Jürg Dual Viscosimètre
EP0364217A2 (fr) * 1988-10-14 1990-04-18 Panametrics, Inc. Capteur des ondes de torsion et système pour fluides

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JPS5838738B2 (ja) * 1979-01-11 1983-08-25 横河電機株式会社 圧力計
US4329875A (en) * 1980-03-31 1982-05-18 Texaco Inc. Ultra sensitive liquid level detector and method
US4449414A (en) * 1981-05-21 1984-05-22 Smiths Industries Public Limited Company Fluid-responsive apparatus
DE3215040C2 (de) * 1982-04-22 1985-11-07 VEGA Grieshaber -GmbH & Co, 7622 Schiltach Resonanzstab
AU1760483A (en) * 1982-08-05 1984-02-09 Treloar, W.J. And Sons Pty. Ltd. Resonant sensor for distinguishing fluids
GB2139354A (en) * 1983-05-03 1984-11-07 British Hydromechanics Monitoring process conditions
US4589281A (en) * 1984-09-20 1986-05-20 Keystone International, Inc. Material level detector and control
IT1187521B (it) * 1985-01-09 1987-12-23 Zanussi Zeltron Inst Procedimento di misurazione del livello di un liquido tramite onde elastiche e dispositivo effettuante tale procedimento
US4644789A (en) * 1985-12-20 1987-02-24 Clevite Industries Inc. Liquid level indicator system
CH669671A5 (fr) * 1986-02-24 1989-03-31 Hatschek Rudolf A
JPS63134935A (ja) * 1986-11-27 1988-06-07 Yamaichi Electric Mfg Co Ltd 円方向振動形粘度検出装置
JPH0646177B2 (ja) * 1986-11-28 1994-06-15 山一電機工業株式会社 円方向振動形比重検出装置
JPS63273041A (ja) * 1987-04-30 1988-11-10 Yamaichi Electric Mfg Co Ltd 粘度又は比重計
DE3738901A1 (de) * 1987-11-17 1989-05-24 Amelung Gmbh Heinrich Vorrichtung zur erfassung der zustandsaenderung einer fluessigkeit
JPH06762Y2 (ja) * 1987-12-28 1994-01-05 山一電機工業株式会社 振動型粘度又は比重検出器
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.
US4996656A (en) * 1988-09-02 1991-02-26 Innovative Solutions & Support, Incorporated Densitometer with remotely disposed control electronics
DE3833896A1 (de) * 1988-10-05 1990-04-12 Vega Grieshaber Gmbh & Co Frequenzdifferenzauswertung
WO1992005421A1 (fr) * 1990-09-24 1992-04-02 Hydramotion Limited Instrument de detection vibratile
US5295084A (en) * 1991-10-08 1994-03-15 Micromotion, Inc. Vibrating tube densimeter
US5345811A (en) * 1992-04-01 1994-09-13 Parker Hannifin Corporation Fluid density sensor and system
JP3823340B2 (ja) * 1994-08-01 2006-09-20 株式会社ニコン 振動モータ
US6053041A (en) * 1995-02-27 2000-04-25 The Regents Of The University Of California Noninvasive method for determining the liquid level and density inside of a container
DE19546971A1 (de) * 1995-12-15 1997-06-19 Baldwin Gegenheimer Gmbh Vorrichtung einer Druckmaschine
US5900534A (en) * 1996-10-07 1999-05-04 Natural Fuels Corporation Densitometer
DE19651362C1 (de) * 1996-12-10 1998-06-10 Endress Hauser Gmbh Co Vorrichtung zur Überwachung eines vorbestimmten Füllstands in einem Behälter
DE19913077C2 (de) * 1999-03-23 2003-06-12 Wacker Construction Equipment Innenrüttler mit Meßsystem
US6412354B1 (en) 1999-12-16 2002-07-02 Halliburton Energy Services, Inc. Vibrational forced mode fluid property monitor and method
DE10108799A1 (de) * 2001-02-19 2002-09-05 Laser & Med Tech Gmbh Verfahren und Vorrichtung zur Ultraschallimpfung von biologischem Zellmaterial
DE10211886B4 (de) * 2002-03-18 2004-07-15 Dornier Medtech Gmbh Verfahren und Einrichtung zum Erzeugen bipolarer akustischer Impulse
DE10223196B4 (de) * 2002-05-24 2004-05-13 Dornier Medtech Systems Gmbh Verfahren und Einrichtung zum Transferieren von Molekülen in Zellen
JP3686404B2 (ja) * 2002-11-20 2005-08-24 Ｃｂｃマテリアルズ株式会社 検液装置
JP4804906B2 (ja) 2004-12-15 2011-11-02 ドルニエル メドテック システムズ ゲーエムベーハー 循環器および神経疾患の患者における細胞治療および組織再生の衝撃波による改良方法
DE102005053331A1 (de) * 2005-11-07 2007-05-10 Endress + Hauser Gmbh + Co. Kg Vorrichtung zur Bestimmung und/oder Überwachung einer Prozessgröße
SG178196A1 (en) * 2009-08-14 2012-03-29 Endress & Hauser Gmbh & Co Kg Multivariable sensor for determining and/ or monitoring fill level and density and/ or viscosity of a liquid in a container
US10126266B2 (en) 2014-12-29 2018-11-13 Concentric Meter Corporation Fluid parameter sensor and meter
WO2016109451A1 (fr) 2014-12-29 2016-07-07 Concentric Meter Corporation Transducteur électromagnétique
EP3215812B1 (fr) 2014-12-29 2020-10-07 Concentric Meter Corporation Capteur et dispositif de mesure de paramètre de fluide
KR20160101419A (ko) * 2015-02-17 2016-08-25 한국전자통신연구원 수위 계측 장치 및 수위 계측 방법
RU2614343C1 (ru) * 2015-11-05 2017-03-24 федеральное государственное автономное образовательное учреждение высшего образования "Самарский государственный аэрокосмический университет имени академика С.П. Королева (национальный исследовательский университет)" (СГАУ) Способ дистанционного контроля уровня и плотности жидкости в резервуаре
WO2021090114A1 (fr) * 2019-11-05 2021-05-14 Saudi Arabian Oil Company Capteur à cellule foliacée
CN111678839B (zh) * 2020-06-10 2022-10-04 上海市计量测试技术研究院 一种磁力悬浮法标定密度标准液的装置与方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1338320A (fr) * 1962-03-06 1963-09-27 Schlumberger Prospection Densimètre

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
DE623103C (de) * 1933-02-24 1935-12-13 Siemens & Halske Akt Ges Schuetthoehenanzeiger fuer Bunker
US2354923A (en) * 1941-01-07 1944-08-01 Superior Oil Co Frictional resistance testing apparatus
AT196646B (de) * 1951-05-22 1958-03-25 Bendix Aviat Corp Gerät zur Bestimmung der Viskosität einer Flüssigkeit oder eines Flüssigkeitsfilmes
US3225588A (en) * 1962-03-06 1965-12-28 Schlumberger Prospection Densimetering systems
DE1800342B2 (de) * 1968-10-01 1972-05-10 Seppeier-Stiftung für Flug- und Fahrwesen, 4833 Neuenkirchen Anordnung zum messen der dichte von fluessigkeiten
US3690147A (en) * 1969-08-15 1972-09-12 Massachusetts Inst Technology Torsional vibration densitometer
DE2012475A1 (de) * 1970-03-17 1971-12-23 Roland Offsetmaschf Füllstands-Fühler
DE2144770C2 (de) * 1971-09-07 1985-08-14 Automation Products Inc., Houston, Tex. Einrichtung zum Bestimmen physikalischer Eigenschaften von gasförmigen, flüssigen oder pulverförmigen Stoffen
US4129031A (en) * 1977-09-16 1978-12-12 General Electric Company Immersible liquid densitometer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1338320A (fr) * 1962-03-06 1963-09-27 Schlumberger Prospection Densimètre

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0297032A1 (fr) * 1987-06-12 1988-12-28 Jürg Dual Viscosimètre
US4920787A (en) * 1987-06-12 1990-05-01 Dual Juerg Viscometer
EP0364217A2 (fr) * 1988-10-14 1990-04-18 Panametrics, Inc. Capteur des ondes de torsion et système pour fluides
EP0364217A3 (en) * 1988-10-14 1990-08-29 Panametrics, Inc. Improved torsional wave fluid sensor and system

Also Published As

Publication number Publication date
DE2844143C2 (de) 1986-04-17
FR2435707B1 (fr) 1985-06-28
DE2844143A1 (de) 1980-02-14
GB2027539A (en) 1980-02-20
DE2857924C2 (de) 1985-02-28
US4240285A (en) 1980-12-23
GB2027539B (en) 1983-09-21

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