FR2468900A1 - Capteur de densite de fluide - Google Patents

Capteur de densite de fluide

Info

Publication number
FR2468900A1
FR2468900A1 FR8023303A FR8023303A FR2468900A1 FR 2468900 A1 FR2468900 A1 FR 2468900A1 FR 8023303 A FR8023303 A FR 8023303A FR 8023303 A FR8023303 A FR 8023303A FR 2468900 A1 FR2468900 A1 FR 2468900A1
Authority
FR
France
Prior art keywords
fluid
tube
frequency
increase
density
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
FR8023303A
Other languages
English (en)
Other versions
FR2468900B1 (fr
Inventor
James Wolryche Stansfeld
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.)
Gemalto Terminals Ltd
Original Assignee
Solartron Electronic Group 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 Solartron Electronic Group Ltd filed Critical Solartron Electronic Group Ltd
Publication of FR2468900A1 publication Critical patent/FR2468900A1/fr
Application granted granted Critical
Publication of FR2468900B1 publication Critical patent/FR2468900B1/fr
Granted 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
    • 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
    • G01N2009/006—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 vibrating tube, tuning fork

Landscapes

  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Volume Flow (AREA)
  • Measuring Fluid Pressure (AREA)
  • Inorganic Insulating Materials (AREA)

Abstract

L'invention est relative à un capteur de densité de fluide du genre utilisant un tube rempli de fluide dans lequel des vibrations transversales naturelles sont entretenues à une fréquence représentative de la densité du fluide. Suivant l'invention, le tube 16 présente une légère ellipticité pour compenser la variation de fréquence due à une variation de pression du fluide, par exemple une augmentation de pression tendant à rendre le tube plus circulaire et à augmenter la fréquence, alors que l'augmentation de la contrainte circonférencielle provoque une diminution de la rigidité transversale du tube, et par suite de la fréquence. Le tube est supporté par des éléments 2, 8, 10, 12 et des moyens électriques 30, 32, 34 entretiennent sa vibration. Application à la mesure de la densité de fluide de pression variable.
FR8023303A 1979-11-06 1980-10-31 Capteur de densite de fluide Granted FR2468900A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7938367 1979-11-06

Publications (2)

Publication Number Publication Date
FR2468900A1 true FR2468900A1 (fr) 1981-05-08
FR2468900B1 FR2468900B1 (fr) 1983-02-25

Family

ID=10508997

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8023303A Granted FR2468900A1 (fr) 1979-11-06 1980-10-31 Capteur de densite de fluide

Country Status (5)

Country Link
US (2) US4354377A (fr)
JP (2) JPS5676031A (fr)
AT (1) AT393033B (fr)
DE (1) DE3039438A1 (fr)
FR (1) FR2468900A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679947A (en) * 1985-07-16 1987-07-14 Engineering Measurements Co. Method and apparatus for measuring steam quality
US4803867A (en) * 1987-04-28 1989-02-14 Dahlin Erik B Fluid measurement apparatus providing flow tube strain relief
GB2212613B (en) * 1987-11-19 1991-07-03 Schlumberger Ind Ltd Improvements in single vibrating tube transducers
US5115683A (en) * 1988-09-27 1992-05-26 K-Flow Division Of Kane Steel Co., Inc. Coriolis mass flow meter adapted for low flow rates
US5265460A (en) * 1991-04-09 1993-11-30 Simmonds Precision Products, Inc. Density determination of aircraft fuel based on the sensed temperature velocity of sound, and dielectric constant of the fuel
DE4321994A1 (de) * 1993-07-01 1995-01-12 Nalco Chemical Co Verfahren zum Steuern von Mengen chemischer Hilfs- und Flockmittel in Abhängigkeit einer on-line Massen-Feststoffmessung für Klär- und Ent-Wässerungsprozesse aller Art, sowie Anlage zur Durchführung des Verfahrens
CN1037127C (zh) * 1993-11-17 1998-01-21 哈尔滨蓝波高技术开发有限公司 振动壳密度传感器
US5974858A (en) * 1997-05-02 1999-11-02 Calibron Systems, Inc. Single flange installation densimeter
US20070186684A1 (en) * 2003-07-24 2007-08-16 Pham Nghieu Q Vibrating tube mass flow meter
DE10354373A1 (de) * 2003-11-20 2005-06-16 Endress + Hauser Flowtec Ag, Reinach Messaufnehmer vom Vibrationstyp
WO2015085025A1 (fr) * 2013-12-04 2015-06-11 Gilbarco Inc. Débitmètre de coriolis de distributeur de combustible
GB201417539D0 (en) * 2014-10-03 2014-11-19 Bios Developments Ltd Measurement system and methods
WO2016109451A1 (fr) 2014-12-29 2016-07-07 Concentric Meter Corporation Transducteur électromagnétique
US10126266B2 (en) 2014-12-29 2018-11-13 Concentric Meter Corporation Fluid parameter sensor and meter
EP3215812B1 (fr) 2014-12-29 2020-10-07 Concentric Meter Corporation Capteur et dispositif de mesure de paramètre de fluide
GB201511406D0 (en) * 2015-06-30 2015-08-12 Hydramotion Ltd Apparatus and method for measuring fluid properties
RU189663U1 (ru) * 2019-01-10 2019-05-30 Публичное акционерное общество "Транснефть" (ПАО "Транснефть") Измерительный элемент преобразователя плотности

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3298221A (en) * 1963-12-30 1967-01-17 Charles E Miller Densitometer
US3444723A (en) * 1965-12-29 1969-05-20 Solartron Electronic Group Fluid density meters
US3585843A (en) * 1968-10-29 1971-06-22 Solartron Electronic Group Fluid density transducers
US4007627A (en) * 1974-09-21 1977-02-15 The Solartron Electronic Group Limited Density transducers
GB1503503A (en) * 1975-04-09 1978-03-15 Bell & Howell Ltd Transducers for determining the density of a fluid

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257850A (en) * 1963-11-26 1966-06-28 Rosemount Eng Co Ltd Pressure responsive vibrating tube
GB1207997A (en) * 1966-10-22 1970-10-07 Siegfried Brockhaus Device for measuring the density of a fluid
GB1432165A (en) * 1973-07-16 1976-04-14 Bell & Howell Co Apparatus for determining the density of a fluid
US4217774A (en) * 1979-01-04 1980-08-19 Joram Agar Apparatus for measuring the value of a fluid variable

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3298221A (en) * 1963-12-30 1967-01-17 Charles E Miller Densitometer
US3444723A (en) * 1965-12-29 1969-05-20 Solartron Electronic Group Fluid density meters
GB1158790A (en) * 1965-12-29 1969-07-16 Solartron Electronic Group Improvements in Fluid Density Meters
US3585843A (en) * 1968-10-29 1971-06-22 Solartron Electronic Group Fluid density transducers
GB1280997A (en) * 1968-10-29 1972-07-12 Solartron Electronic Group Improvements in or relating to fluid density transducers
US4007627A (en) * 1974-09-21 1977-02-15 The Solartron Electronic Group Limited Density transducers
GB1503503A (en) * 1975-04-09 1978-03-15 Bell & Howell Ltd Transducers for determining the density of a fluid

Also Published As

Publication number Publication date
US4354377A (en) 1982-10-19
US4466272A (en) 1984-08-21
ATA545780A (de) 1990-12-15
JPS6410770B2 (fr) 1989-02-22
JPS62228135A (ja) 1987-10-07
AT393033B (de) 1991-07-25
JPS5676031A (en) 1981-06-23
DE3039438C2 (fr) 1992-09-10
DE3039438A1 (de) 1981-08-27
FR2468900B1 (fr) 1983-02-25
JPS6333656B2 (fr) 1988-07-06

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Legal Events

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CA Change of address
CD Change of name or company name
TP Transmission of property