SE0003348D0 - Apparatus and method for measuring the flow in a fluid - Google Patents

Apparatus and method for measuring the flow in a fluid

Info

Publication number
SE0003348D0
SE0003348D0 SE0003348A SE0003348A SE0003348D0 SE 0003348 D0 SE0003348 D0 SE 0003348D0 SE 0003348 A SE0003348 A SE 0003348A SE 0003348 A SE0003348 A SE 0003348A SE 0003348 D0 SE0003348 D0 SE 0003348D0
Authority
SE
Sweden
Prior art keywords
fluid
detecting
acoustic waves
measuring
flow
Prior art date
Application number
SE0003348A
Other languages
Swedish (sv)
Inventor
Mats Larsson
Peter Loefgren
Tomas Nygren
Mats Aabom
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 SE0003348A priority Critical patent/SE0003348D0/en
Publication of SE0003348D0 publication Critical patent/SE0003348D0/en
Priority to PCT/SE2001/001975 priority patent/WO2002023136A1/en
Priority to AU2001288172A priority patent/AU2001288172A1/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
    • G01F1/66—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 measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17853—Methods, e.g. algorithms; Devices of the filter
    • G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive filter
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17857—Geometric disposition, e.g. placement of microphones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

A derive and a method for measuring the flow of a fluid flowing in a channel. The device comprises a member (2) for generating essentially plane, acoustic waves both upstream and downstream of the flowing fluid, a first (3) and a second (4) member for detecting the acoustic waves, and a calculation system. The first detecting member (3) is arranged upstream and at a distance from the wave generating member (2) and the second detecting member (4) is arranged downstream and at a distance from the wave generating member (2). The calculation system comprises means (8) for estimating the time difference between when the acoustic waves are detected by the first and the second detecting member, and means (9) for calculating the velocity of the fluid in accordance with the time difference.
SE0003348A 2000-09-18 2000-09-18 Apparatus and method for measuring the flow in a fluid SE0003348D0 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0003348A SE0003348D0 (en) 2000-09-18 2000-09-18 Apparatus and method for measuring the flow in a fluid
PCT/SE2001/001975 WO2002023136A1 (en) 2000-09-18 2001-09-14 A device and a method for measuring the flow in a fluid
AU2001288172A AU2001288172A1 (en) 2000-09-18 2001-09-14 A device and a method for measuring the flow in a fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0003348A SE0003348D0 (en) 2000-09-18 2000-09-18 Apparatus and method for measuring the flow in a fluid

Publications (1)

Publication Number Publication Date
SE0003348D0 true SE0003348D0 (en) 2000-09-18

Family

ID=20281083

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0003348A SE0003348D0 (en) 2000-09-18 2000-09-18 Apparatus and method for measuring the flow in a fluid

Country Status (3)

Country Link
AU (1) AU2001288172A1 (en)
SE (1) SE0003348D0 (en)
WO (1) WO2002023136A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1631797A2 (en) * 2003-06-05 2006-03-08 CiDra Corporation Apparatus for measuring velocity and flow rate of a fluid having a non-negligible axial mach number using an array of sensors
DE102005042792B3 (en) * 2005-09-08 2007-05-31 Rohde & Schwarz Ftk Gmbh Fluid flow speed and/or temperature measuring method for use in e.g. closed flow system, involves deriving flow speed and/or temperature of fluid flowing through measuring sections from simultaneously determined delays of ultrasound signals
HUP0700785A2 (en) * 2007-12-05 2009-06-29 Thormed Kft Method and apparatus for determining the flow parameters of a streaming medium
CN112188379B (en) * 2020-09-29 2021-11-02 深圳市音鸿电子有限公司 Sound detection device utilizing magnetorheological fluid

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE467552B (en) * 1988-10-31 1992-08-03 Jerker Delsing SETTING AND DEVICE MEASURING THE SUBSTANCE FLOW M OF A FLUIDIUM
FI87493C (en) * 1991-12-23 1993-01-11 Kytoelae Instrumenttitehdas OVER ANCHORING FOR OVER MAINTENANCE AV STROEMNINGSHASTIGHETEN AV GASER OCH / ELLER STORHETER SOM KAN HAERLEDAS FRAON DENNA
NO174643C (en) * 1992-01-13 1994-06-08 Jon Steinar Gudmundsson Apparatus and method for determining flow rate and gas / liquid ratio in multi-phase streams
FI88208C (en) * 1992-04-01 1993-04-13 Valtion Teknillinen FARING EQUIPMENT FOR ACOUSTIC MAINTENANCE AV ENTRY
FI88209C (en) * 1992-04-14 1993-04-13 Kytoelae Instrumenttitehdas Method and apparatus for acoustic current measurement to assure the performance
AU1907995A (en) * 1993-12-30 1995-08-01 Bolt Beranek And Newman Inc. Active muffler
FI94909C (en) * 1994-04-19 1995-11-10 Valtion Teknillinen Acoustic flow measurement method and applicable device
DE19722274A1 (en) * 1997-05-28 1998-12-03 Degussa Method for measuring density and mass flow

Also Published As

Publication number Publication date
AU2001288172A1 (en) 2002-03-26
WO2002023136A1 (en) 2002-03-21

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