CA2301908C - Gas flow measurement device utilizing induced cyclic pressure wave - Google Patents

Gas flow measurement device utilizing induced cyclic pressure wave Download PDF

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Publication number
CA2301908C
CA2301908C CA2301908A CA2301908A CA2301908C CA 2301908 C CA2301908 C CA 2301908C CA 2301908 A CA2301908 A CA 2301908A CA 2301908 A CA2301908 A CA 2301908A CA 2301908 C CA2301908 C CA 2301908C
Authority
CA
Canada
Prior art keywords
measuring
duct
flow
space
measuring duct
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
CA2301908A
Other languages
English (en)
French (fr)
Other versions
CA2301908A1 (en
Inventor
Johannes Roine
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.)
VOXTONE Oy
Original Assignee
VOXTONE Oy
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 VOXTONE Oy filed Critical VOXTONE Oy
Publication of CA2301908A1 publication Critical patent/CA2301908A1/en
Application granted granted Critical
Publication of CA2301908C publication Critical patent/CA2301908C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/74—Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/363—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction with electrical or electro-mechanical indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/38—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule
    • G01F1/383—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule with electrical or electro-mechanical indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/40—Details of construction of the flow constriction devices
    • G01F1/46—Pitot tubes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid
    • G01P5/16—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid using Pitot tubes, e.g. Machmeter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Measuring Volume Flow (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Lubricants (AREA)
  • Inorganic Insulating Materials (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
CA2301908A 1997-08-19 1998-08-18 Gas flow measurement device utilizing induced cyclic pressure wave Expired - Fee Related CA2301908C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI973395 1997-08-19
FI973395A FI103073B1 (fi) 1997-08-19 1997-08-19 Virtausmittari
PCT/FI1998/000636 WO1999009376A1 (en) 1997-08-19 1998-08-18 Flowmeter

Publications (2)

Publication Number Publication Date
CA2301908A1 CA2301908A1 (en) 1999-02-25
CA2301908C true CA2301908C (en) 2010-06-15

Family

ID=8549378

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2301908A Expired - Fee Related CA2301908C (en) 1997-08-19 1998-08-18 Gas flow measurement device utilizing induced cyclic pressure wave

Country Status (8)

Country Link
US (1) US6520029B1 (enExample)
EP (1) EP1007910B1 (enExample)
JP (1) JP2001515219A (enExample)
AT (1) ATE355507T1 (enExample)
CA (1) CA2301908C (enExample)
DE (1) DE69837206T2 (enExample)
FI (1) FI103073B1 (enExample)
WO (1) WO1999009376A1 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6993619B2 (en) 2003-03-28 2006-01-31 International Business Machines Corporation Single request data transfer regardless of size and alignment
DE102016119359A1 (de) * 2016-10-11 2018-04-12 Deutsches Zentrum für Luft- und Raumfahrt e.V. Staudrucksonde für eine Sensoreinrichtung und Flugkörper mit einer Sensoreinrichtung
US10955324B2 (en) 2018-01-02 2021-03-23 Lennox Industries Inc. Pressure probe including multiple orifices for measuring air pressure in varying airflow systems
CN112284482B (zh) * 2020-11-16 2025-10-03 碧臣仪器(北京)有限公司 气体测量装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506553A (en) * 1983-09-30 1985-03-26 The United States Of America As Represented By The Secretary Of The Army Apparatus for measuring small values of air flow
US5172592A (en) 1990-09-25 1992-12-22 Pacer Systems, Inc. Omnidirectional pressure sensing head
US5394759A (en) * 1993-04-14 1995-03-07 United Sciences, Inc. Automated flow measuring device
US5365795A (en) * 1993-05-20 1994-11-22 Brower Jr William B Improved method for determining flow rates in venturis, orifices and flow nozzles involving total pressure and static pressure measurements
US5440217A (en) * 1994-05-04 1995-08-08 United Sciences, Inc. Drive mechanism for automated flow measuring device
US5509313A (en) * 1994-09-30 1996-04-23 United Sciences, Inc. Method for measuring flow rate and direction of a fluid in a conduit

Also Published As

Publication number Publication date
WO1999009376A1 (en) 1999-02-25
CA2301908A1 (en) 1999-02-25
US6520029B1 (en) 2003-02-18
JP2001515219A (ja) 2001-09-18
EP1007910B1 (en) 2007-02-28
FI103073B (fi) 1999-04-15
DE69837206D1 (de) 2007-04-12
DE69837206T2 (de) 2007-11-22
ATE355507T1 (de) 2006-03-15
EP1007910A1 (en) 2000-06-14
FI103073B1 (fi) 1999-04-15
FI973395A0 (fi) 1997-08-19
FI973395A7 (fi) 1999-02-20

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