DE3854708T2 - Gerät zur Dichtemessung eines Fluids. - Google Patents

Gerät zur Dichtemessung eines Fluids.

Info

Publication number
DE3854708T2
DE3854708T2 DE3854708T DE3854708T DE3854708T2 DE 3854708 T2 DE3854708 T2 DE 3854708T2 DE 3854708 T DE3854708 T DE 3854708T DE 3854708 T DE3854708 T DE 3854708T DE 3854708 T2 DE3854708 T2 DE 3854708T2
Authority
DE
Germany
Prior art keywords
density
fluid
contact
measuring
manufactured
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
DE3854708T
Other languages
English (en)
Other versions
DE3854708D1 (de
Inventor
Clifford Donald Young
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.)
Central Research Laboratories Ltd
Original Assignee
Thorn EMI PLC
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 Thorn EMI PLC filed Critical Thorn EMI PLC
Application granted granted Critical
Publication of DE3854708D1 publication Critical patent/DE3854708D1/de
Publication of DE3854708T2 publication Critical patent/DE3854708T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N2035/00178—Special arrangements of analysers
    • G01N2035/00237—Handling microquantities of analyte, e.g. microvalves, capillary networks
DE3854708T 1987-08-28 1988-08-22 Gerät zur Dichtemessung eines Fluids. Expired - Fee Related DE3854708T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878720355A GB8720355D0 (en) 1987-08-28 1987-08-28 Measuring fluid density

Publications (2)

Publication Number Publication Date
DE3854708D1 DE3854708D1 (de) 1996-01-04
DE3854708T2 true DE3854708T2 (de) 1996-06-20

Family

ID=10622980

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3854708T Expired - Fee Related DE3854708T2 (de) 1987-08-28 1988-08-22 Gerät zur Dichtemessung eines Fluids.

Country Status (8)

Country Link
US (1) US4890480A (de)
EP (1) EP0305133B1 (de)
JP (1) JPH0196531A (de)
AT (1) ATE130678T1 (de)
AU (1) AU610230B2 (de)
CA (1) CA1323509C (de)
DE (1) DE3854708T2 (de)
GB (1) GB8720355D0 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8720356D0 (en) * 1987-08-28 1987-10-07 Thorn Emi Flow Measurement Ltd Fluid meter
GB8912755D0 (en) * 1989-06-02 1989-07-19 Emi Plc Thorn A"null"flow sensor
US5345811A (en) * 1992-04-01 1994-09-13 Parker Hannifin Corporation Fluid density sensor and system
US5591901A (en) * 1994-04-13 1997-01-07 Ryland Engineering Corporation Fluid sensor
US6494079B1 (en) * 2001-03-07 2002-12-17 Symyx Technologies, Inc. Method and apparatus for characterizing materials by using a mechanical resonator
US6269685B1 (en) * 1999-09-23 2001-08-07 Ut Battelle, Llc Viscosity measuring using microcantilevers
US6311549B1 (en) * 1999-09-23 2001-11-06 U T Battelle Llc Micromechanical transient sensor for measuring viscosity and density of a fluid
JP3721016B2 (ja) 1999-09-30 2005-11-30 宮崎沖電気株式会社 レジスト処理装置
US7302830B2 (en) 2001-06-06 2007-12-04 Symyx Technologies, Inc. Flow detectors having mechanical oscillators, and use thereof in flow characterization systems
US7043969B2 (en) * 2002-10-18 2006-05-16 Symyx Technologies, Inc. Machine fluid sensor and method
EP1554570A2 (de) * 2002-10-18 2005-07-20 Symyx Technologies, Inc. Umweltsteuersystemfluidmesssystem und verfahren mit einem sensor mit mechanischem resonator
US7721590B2 (en) * 2003-03-21 2010-05-25 MEAS France Resonator sensor assembly
WO2004086002A1 (en) * 2003-03-21 2004-10-07 Symyx Technologies, Inc. Resonator sensor assembly
WO2004086027A2 (en) * 2003-03-21 2004-10-07 Symyx Technologies, Inc. Mechanical resonator
US7263874B2 (en) * 2005-06-08 2007-09-04 Bioscale, Inc. Methods and apparatus for determining properties of a fluid
US8161798B2 (en) 2006-08-14 2012-04-24 Samsung Sdi Co., Ltd. Density sensing device and fuel cell system with it
CN101292875B (zh) * 2008-06-06 2010-07-14 天津市先石光学技术有限公司 利用基准波长测量成分浓度的方法
US20110092840A1 (en) * 2009-09-23 2011-04-21 Feather Sensors Llc Intelligent air flow sensors
US10806373B2 (en) * 2009-09-23 2020-10-20 Robert E. Coifman Method and apparatus for intelligent flow sensors
US10126266B2 (en) 2014-12-29 2018-11-13 Concentric Meter Corporation Fluid parameter sensor and meter
US10107784B2 (en) 2014-12-29 2018-10-23 Concentric Meter Corporation Electromagnetic transducer
US9752911B2 (en) 2014-12-29 2017-09-05 Concentric Meter Corporation Fluid parameter sensor and meter
JP6604626B2 (ja) * 2015-08-21 2019-11-13 国立大学法人東北大学 検出装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1175664A (en) * 1966-01-28 1969-12-23 Solartron Electronic Group Improvements in or relating to Methods of Measuring the Densities of Fluids and Apparatus therefor
US3603137A (en) * 1968-11-05 1971-09-07 Automation Prod Vibrating method and apparatus for determining the physical properties of material
US3677067A (en) * 1970-08-20 1972-07-18 Itt Densitometer
US3842655A (en) * 1971-10-12 1974-10-22 Itt Fluid density sensing systems
US3903731A (en) * 1974-02-27 1975-09-09 Canadian Patents Dev Apparatus for determining physical properties
US3903732A (en) * 1974-06-17 1975-09-09 Honeywell Inc Viscosimeter and densitometer apparatus
JPS5922515Y2 (ja) * 1976-07-20 1984-07-05 横河電機株式会社 振動式密度計
DE2639985C3 (de) * 1976-09-04 1980-08-07 Bopp & Reuther Gmbh, 6800 Mannheim Dichtemesser für Fluide, insbesondere für Flüssigkeiten
JPS53121211A (en) * 1977-03-29 1978-10-23 Tetsuya Tada Sprayer
US4193291A (en) * 1978-02-27 1980-03-18 Panametrics, Inc. Slow torsional wave densitometer
GB1588669A (en) * 1978-05-30 1981-04-29 Standard Telephones Cables Ltd Silicon transducer
JPS5838738B2 (ja) * 1979-01-11 1983-08-25 横河電機株式会社 圧力計
US4345456A (en) * 1980-09-15 1982-08-24 International Telephone And Telegraph Corporation Densitometer
JPS57184950A (en) * 1981-05-11 1982-11-13 Yokogawa Hokushin Electric Corp Vibration type density meter
JPS5938621A (ja) * 1982-08-27 1984-03-02 Nissan Motor Co Ltd 振動分析装置
US4526480A (en) * 1983-06-21 1985-07-02 Quartztronics, Inc. Fluid density temperature measurement apparatus and method
US4535638A (en) * 1983-10-03 1985-08-20 Quartztronics, Inc. Resonator transducer system with temperature compensation
US4655075A (en) * 1984-09-26 1987-04-07 University Of Delaware Vibrating tube densimeter
JPS6263828A (ja) * 1985-09-06 1987-03-20 Yokogawa Electric Corp 振動式トランスジューサ
DE3679663D1 (de) * 1986-01-07 1991-07-11 Emi Plc Thorn Druckempfindlicher durchflusssensor.
US4783987A (en) * 1987-02-10 1988-11-15 The Board Of Regents Of The University Of Washington System for sustaining and monitoring the oscillation of piezoelectric elements exposed to energy-absorptive media

Also Published As

Publication number Publication date
US4890480A (en) 1990-01-02
EP0305133A2 (de) 1989-03-01
AU2163088A (en) 1989-03-02
EP0305133B1 (de) 1995-11-22
EP0305133A3 (en) 1990-08-22
AU610230B2 (en) 1991-05-16
CA1323509C (en) 1993-10-26
JPH0196531A (ja) 1989-04-14
ATE130678T1 (de) 1995-12-15
GB8720355D0 (en) 1987-10-07
DE3854708D1 (de) 1996-01-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: CENTRAL RESEARCH LABORATORIES LTD., HAYES, MIDDLES

8339 Ceased/non-payment of the annual fee