FR2380585A1 - Fluid flow control system - uses step motor whose speed is controlled by frequency synthesiser - Google Patents

Fluid flow control system - uses step motor whose speed is controlled by frequency synthesiser

Info

Publication number
FR2380585A1
FR2380585A1 FR7703562A FR7703562A FR2380585A1 FR 2380585 A1 FR2380585 A1 FR 2380585A1 FR 7703562 A FR7703562 A FR 7703562A FR 7703562 A FR7703562 A FR 7703562A FR 2380585 A1 FR2380585 A1 FR 2380585A1
Authority
FR
France
Prior art keywords
controlled
control system
motor
flow control
step motor
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.)
Withdrawn
Application number
FR7703562A
Other languages
French (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.)
KILCHSPERGER JEAN CLAUDE
Original Assignee
KILCHSPERGER JEAN CLAUDE
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 KILCHSPERGER JEAN CLAUDE filed Critical KILCHSPERGER JEAN CLAUDE
Priority to FR7703562A priority Critical patent/FR2380585A1/en
Publication of FR2380585A1 publication Critical patent/FR2380585A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
    • G05D11/131—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components
    • G05D11/132—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by measuring the values related to the quantity of the individual components by controlling the flow of the individual components

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Stepping Motors (AREA)
  • Flow Control (AREA)

Abstract

The fluid flow control system has a rotating flow meter (1) which is fixed in a pipe (2) through which the fluid flows. The flowmeter (1) is controlled by a brake motor (3) which is an electrical step by step motor. This motor is connected by a shaft (4) and an endless screw (5) to a tangent wheel (6) directly coupled to the flow meter (1). Variation of motor speed is achieved by a frequency synthesiser (7) which is controlled by digital data from a central unit such as computer or microprocessor. The synthesiser controls the step by step motor (3) it being connected to the latter by an amplifier (8). The frequency synthesiser is controlled by a variable pilot frequency to which is a function of a magnitude such as a fluid temp., PH value or of colour.
FR7703562A 1977-02-09 1977-02-09 Fluid flow control system - uses step motor whose speed is controlled by frequency synthesiser Withdrawn FR2380585A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7703562A FR2380585A1 (en) 1977-02-09 1977-02-09 Fluid flow control system - uses step motor whose speed is controlled by frequency synthesiser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7703562A FR2380585A1 (en) 1977-02-09 1977-02-09 Fluid flow control system - uses step motor whose speed is controlled by frequency synthesiser

Publications (1)

Publication Number Publication Date
FR2380585A1 true FR2380585A1 (en) 1978-09-08

Family

ID=9186488

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7703562A Withdrawn FR2380585A1 (en) 1977-02-09 1977-02-09 Fluid flow control system - uses step motor whose speed is controlled by frequency synthesiser

Country Status (1)

Country Link
FR (1) FR2380585A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2571780A1 (en) * 1984-10-17 1986-04-18 Snecma DEVICE FOR DETERMINING FUEL, FOR EXAMPLE FOR A GAS TURBINE
FR2577433A1 (en) * 1985-02-21 1986-08-22 Commissariat Energie Atomique Apparatus for mixing a plurality of liquids
WO1992015979A1 (en) * 1991-02-27 1992-09-17 University Hospital (London) Development Corporation Computer controlled positive displacement pump for physiological flow simulation

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2571780A1 (en) * 1984-10-17 1986-04-18 Snecma DEVICE FOR DETERMINING FUEL, FOR EXAMPLE FOR A GAS TURBINE
EP0179713A1 (en) * 1984-10-17 1986-04-30 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Fuel-metering device, for example for a gas turbine
US4656827A (en) * 1984-10-17 1987-04-14 Societe Nationale d'Etude et de Construction de Meteur d'Aviation-"S.N.E. C.M.A." Fuel metering system for a gas turbine engine
FR2577433A1 (en) * 1985-02-21 1986-08-22 Commissariat Energie Atomique Apparatus for mixing a plurality of liquids
WO1992015979A1 (en) * 1991-02-27 1992-09-17 University Hospital (London) Development Corporation Computer controlled positive displacement pump for physiological flow simulation
US5284423A (en) * 1991-02-27 1994-02-08 University Hospital (London) Development Corporation Computer controlled positive displacement pump for physiological flow simulation
JP2810233B2 (en) * 1991-02-27 1998-10-15 ユニヴァーシティー ホスピタル （ロンドン） ディヴェロップメント コーポレーション Computer-controlled positive displacement pump for physiological flow simulation.

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Legal Events

Date Code Title Description
ST Notification of lapse