FR1435495A - Appareil pour la mesure de densité gazeuse - Google Patents

Appareil pour la mesure de densité gazeuse

Info

Publication number
FR1435495A
FR1435495A FR18926A FR18926A FR1435495A FR 1435495 A FR1435495 A FR 1435495A FR 18926 A FR18926 A FR 18926A FR 18926 A FR18926 A FR 18926A FR 1435495 A FR1435495 A FR 1435495A
Authority
FR
France
Prior art keywords
gas density
density measurement
measurement
gas
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.)
Expired
Application number
FR18926A
Other languages
English (en)
Inventor
Christopher Linley Johnson
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce 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 Rolls Royce PLC filed Critical Rolls Royce PLC
Application granted granted Critical
Publication of FR1435495A publication Critical patent/FR1435495A/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/02—Arrangement of sensing elements
    • F01D17/08—Arrangement of sensing elements responsive to condition of working-fluid, e.g. pressure
    • 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
    • G01N9/26—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring pressure differences
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/0616—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a bellow
    • G05D16/0619—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a bellow acting directly on the obturator
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/01—Control of flow without auxiliary power
    • G05D7/0106—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule
    • G05D7/0113—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule the sensing element acting as a valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Diaphragms And Bellows (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Sampling And Sample Adjustment (AREA)
FR18926A 1964-06-04 1965-05-31 Appareil pour la mesure de densité gazeuse Expired FR1435495A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23303/64A GB1062866A (en) 1964-06-04 1964-06-04 Apparatus responsive to the density of a gas

Publications (1)

Publication Number Publication Date
FR1435495A true FR1435495A (fr) 1966-04-15

Family

ID=10193436

Family Applications (1)

Application Number Title Priority Date Filing Date
FR18926A Expired FR1435495A (fr) 1964-06-04 1965-05-31 Appareil pour la mesure de densité gazeuse

Country Status (4)

Country Link
US (1) US3417607A (fr)
DE (1) DE1598954A1 (fr)
FR (1) FR1435495A (fr)
GB (1) GB1062866A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855845A (en) * 1972-12-15 1974-12-24 Texaco Inc Gas specific gravity meter
JPS55128143A (en) * 1979-03-28 1980-10-03 Nissan Motor Co Ltd Detector for density of gas
DE102010055249B4 (de) * 2010-12-10 2014-04-03 Trafag Ag Dichtewächter
US11168578B2 (en) * 2018-09-11 2021-11-09 Pratt & Whitney Canada Corp. System for adjusting a variable position vane in an aircraft engine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL296630A (fr) *
US2000308A (en) * 1930-06-25 1935-05-07 Meaf Mach En Apparaten Fab Nv Volume metering apparatus
US2459542A (en) * 1944-07-29 1949-01-18 Republic Flow Meters Co Density measuring apparatus
US2724962A (en) * 1948-01-21 1955-11-29 Republic Flow Meters Co Apparatus for measuring the density of a gas
GB799614A (en) * 1955-03-14 1958-08-13 Bendix Aviat Corp Pressure indicating system
US2981111A (en) * 1957-02-28 1961-04-25 Bill Jack Scient Instr Co Instrument for indicating fluid density
US3137158A (en) * 1962-01-12 1964-06-16 Woodson C Deeds Air density meter

Also Published As

Publication number Publication date
US3417607A (en) 1968-12-24
GB1062866A (en) 1967-03-22
DE1598954A1 (de) 1970-02-12

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