FR2312771B1 - - Google Patents

Info

Publication number
FR2312771B1
FR2312771B1 FR7616264A FR7616264A FR2312771B1 FR 2312771 B1 FR2312771 B1 FR 2312771B1 FR 7616264 A FR7616264 A FR 7616264A FR 7616264 A FR7616264 A FR 7616264A FR 2312771 B1 FR2312771 B1 FR 2312771B1
Authority
FR
France
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
Application number
FR7616264A
Other languages
French (fr)
Other versions
FR2312771A1 (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.)
Bell and Howell Co
Original Assignee
Bell and Howell Co
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 Bell and Howell Co filed Critical Bell and Howell Co
Publication of FR2312771A1 publication Critical patent/FR2312771A1/fr
Application granted granted Critical
Publication of FR2312771B1 publication Critical patent/FR2312771B1/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
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/12—Analysing solids by measuring frequency or resonance of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
    • 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
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02818—Density, viscosity

Landscapes

  • Physics & Mathematics (AREA)
  • General 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)
  • Immunology (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Measuring Fluid Pressure (AREA)
FR7616264A 1975-05-30 1976-05-28 Appareil sensible a la pression Granted FR2312771A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23719/75A GB1548396A (en) 1975-05-30 1975-05-30 Apparatus for sensing fluid pressure

Publications (2)

Publication Number Publication Date
FR2312771A1 FR2312771A1 (fr) 1976-12-24
FR2312771B1 true FR2312771B1 (ref) 1981-06-26

Family

ID=10200193

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7616264A Granted FR2312771A1 (fr) 1975-05-30 1976-05-28 Appareil sensible a la pression

Country Status (4)

Country Link
US (1) US4048846A (ref)
DE (1) DE2624008A1 (ref)
FR (1) FR2312771A1 (ref)
GB (1) GB1548396A (ref)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3317706A1 (de) * 1983-05-16 1984-11-22 Nord-Micro Elektronik Feinmechanik AG, 6000 Frankfurt Zylindrischer hohlkoerper fuer messwandler zum messen des druckes eines fluids
US5010770A (en) * 1989-09-20 1991-04-30 The Babcock & Wilcox Company Vibrating tube fiber optic pressure transducer with light-powered electro-magnetic drive
WO2004011894A1 (en) * 2002-07-25 2004-02-05 Carpenter Brent L Precise pressure measurement by vibrating an oval conduit along different cross-sectional axes
EP2629074A1 (en) * 2012-02-16 2013-08-21 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO A pressure measuring device
US10996092B2 (en) * 2016-02-09 2021-05-04 Micro Motion, Inc. Method and apparatus for modulating a flowpath

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518348A (en) * 1946-08-16 1950-08-08 Bell Telephone Labor Inc Apparatus for the determination of viscosity of liquids
US3021711A (en) * 1957-05-10 1962-02-20 Svenska Flygmotor Aktiebolaget Device for measuring pressure or difference of pressure in fluids
US3411344A (en) * 1964-11-02 1968-11-19 William H Hopkins Resonant frequency vibration testing method and apparatus
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
US3377840A (en) * 1966-04-22 1968-04-16 Howard W. Cole Jr. Apparatus for detecting density of fluids
GB1207997A (en) * 1966-10-22 1970-10-07 Siegfried Brockhaus Device for measuring the density of a fluid
GB1280997A (en) * 1968-10-29 1972-07-12 Solartron Electronic Group Improvements in or relating to fluid density transducers
US3688188A (en) * 1970-12-21 1972-08-29 Bendix Corp Means for measuring the density of fluid in a conduit
DE2239903A1 (de) * 1972-08-14 1974-02-28 Industrie Automation Gmbh & Co Nach dem schwingungs-verfahren arbeitendes massendichte-messgeraet
US3911726A (en) * 1973-03-20 1975-10-14 Vmgi Ultrasonic method for measuring of parameters of liquids

Also Published As

Publication number Publication date
DE2624008A1 (de) 1976-12-09
US4048846A (en) 1977-09-20
FR2312771A1 (fr) 1976-12-24
GB1548396A (en) 1979-07-11

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Legal Events

Date Code Title Description
ST Notification of lapse