SE8704134L - PROCEDURE AND DEVICE FOR GAS SPEED AND / OR GAS FLOW Saturation SPECIFICALLY IN CENTRAL STREAD - Google Patents

PROCEDURE AND DEVICE FOR GAS SPEED AND / OR GAS FLOW Saturation SPECIFICALLY IN CENTRAL STREAD

Info

Publication number
SE8704134L
SE8704134L SE8704134A SE8704134A SE8704134L SE 8704134 L SE8704134 L SE 8704134L SE 8704134 A SE8704134 A SE 8704134A SE 8704134 A SE8704134 A SE 8704134A SE 8704134 L SE8704134 L SE 8704134L
Authority
SE
Sweden
Prior art keywords
gas
measuring
velocity
central
stread
Prior art date
Application number
SE8704134A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8704134D0 (en
Inventor
B Johnsson
Original Assignee
Flaekt Ab
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 Flaekt Ab filed Critical Flaekt Ab
Priority to SE8704134A priority Critical patent/SE8704134L/en
Publication of SE8704134D0 publication Critical patent/SE8704134D0/en
Priority to EP19880909627 priority patent/EP0419469A1/en
Priority to PCT/SE1988/000548 priority patent/WO1989003977A1/en
Priority to AU26237/88A priority patent/AU2623788A/en
Publication of SE8704134L publication Critical patent/SE8704134L/en
Priority to DK089690A priority patent/DK89690A/en
Priority to NO90901774A priority patent/NO901774L/en
Priority to FI902012A priority patent/FI902012A0/en

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
    • G01F1/05—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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

The present invention relates to a method and to apparatus for measuring the velocity and/or flow rate of a gas stream in a central assembly (1), in which the gas is caused to pass through at least one velocity-increasing constriction opening (26) between baffles (24) positioned in a plane at right angles to a duct section (15). A first total pressure in the assembly (1) is measured in a region upstream of the at least one constriction opening, preferably in a stagnation zone centrally in front of one of the baffles (24). A second pressure is measured at a location within or immediately downstream of the at least one constriction opening (26) with the aid of at least one measuring probe in the form of a circular-cylindrical measuring tube (32) which has at least one measuring orifice (34) on the downstream side of the tube (32) so as to obtain an amplified pressure difference value, this value being used to calculate the gas velocity and/or the gas flow rate.
SE8704134A 1987-10-23 1987-10-23 PROCEDURE AND DEVICE FOR GAS SPEED AND / OR GAS FLOW Saturation SPECIFICALLY IN CENTRAL STREAD SE8704134L (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE8704134A SE8704134L (en) 1987-10-23 1987-10-23 PROCEDURE AND DEVICE FOR GAS SPEED AND / OR GAS FLOW Saturation SPECIFICALLY IN CENTRAL STREAD
EP19880909627 EP0419469A1 (en) 1987-10-23 1988-10-20 Method and arrangement for measuring gas flow parameters
PCT/SE1988/000548 WO1989003977A1 (en) 1987-10-23 1988-10-20 Method and arrangement for measuring gas flow parameters
AU26237/88A AU2623788A (en) 1987-10-23 1988-10-20 Method and arrangement for measuring gas flow parameters
DK089690A DK89690A (en) 1987-10-23 1990-04-10 METHOD AND DEVICE FOR MEASUREMENT OF AIR FLOW PARAMETERS
NO90901774A NO901774L (en) 1987-10-23 1990-04-23 PROCEDURE AND DEVICE FOR MEASUREMENT OF GAS CURRENT PARAMETERS.
FI902012A FI902012A0 (en) 1987-10-23 1990-04-23 FARING EQUIPMENT FOR MANUFACTURING WITH PARAMETERS HAS BEEN GASSTROEMNINGEN.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8704134A SE8704134L (en) 1987-10-23 1987-10-23 PROCEDURE AND DEVICE FOR GAS SPEED AND / OR GAS FLOW Saturation SPECIFICALLY IN CENTRAL STREAD

Publications (2)

Publication Number Publication Date
SE8704134D0 SE8704134D0 (en) 1987-10-23
SE8704134L true SE8704134L (en) 1989-04-24

Family

ID=20369987

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8704134A SE8704134L (en) 1987-10-23 1987-10-23 PROCEDURE AND DEVICE FOR GAS SPEED AND / OR GAS FLOW Saturation SPECIFICALLY IN CENTRAL STREAD

Country Status (6)

Country Link
EP (1) EP0419469A1 (en)
AU (1) AU2623788A (en)
DK (1) DK89690A (en)
FI (1) FI902012A0 (en)
SE (1) SE8704134L (en)
WO (1) WO1989003977A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8916259U1 (en) * 1989-05-20 1996-07-11 Dr.Ing.H.C. F. Porsche Ag, 70435 Stuttgart Device for determining mass flows of gaseous media through heat exchangers
AU2022892A (en) * 1991-06-12 1993-01-12 Abb Flakt Ab Method and apparatus for measurement of total flow rate in ventilation installations
DE19545948C2 (en) * 1995-12-08 1997-09-18 Waldner Laboreinrichtungen Device for determining the strength of a gas volume flow
DE19726864B4 (en) * 1997-06-24 2005-08-04 Waldner Laboreinrichtungen Gmbh & Co Device for measuring the exhaust air volume flow in a fume hood
EA008287B1 (en) * 2001-08-29 2007-04-27 Эро Системз Энджиниринг, Инк. Wind tunnel and collector configuration therefor
US6997049B2 (en) * 2001-08-29 2006-02-14 Aero Systems Engineering, Inc. Wind tunnel and collector configuration therefor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129587A (en) * 1960-10-11 1964-04-21 Honeywell Regulator Co Flow sensing device
DE2330746A1 (en) * 1973-06-16 1975-01-09 Licentia Gmbh Air colume measuring device - is for exhaust air ventilation lamps using an air pressure gauge
US4444060A (en) * 1981-03-06 1984-04-24 Nihon Cambridge Filter Kabushiki Kaisha Fluid pressure sensing apparatus
GB8321482D0 (en) * 1983-08-10 1983-09-14 Tekflo Ltd Flowmeter
US4594888A (en) * 1985-02-19 1986-06-17 Air Monitor Corporation Airflow measuring sound attenuator

Also Published As

Publication number Publication date
SE8704134D0 (en) 1987-10-23
DK89690D0 (en) 1990-04-10
FI902012A0 (en) 1990-04-23
DK89690A (en) 1990-04-10
WO1989003977A1 (en) 1989-05-05
AU2623788A (en) 1989-05-23
EP0419469A1 (en) 1991-04-03

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Legal Events

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Effective date: 19910107