NO174643C - Apparat og framgangsmåte for bestemmelse av strömningshastighet og gass/væske-forhold i flerefase-strömmer - Google Patents

Apparat og framgangsmåte for bestemmelse av strömningshastighet og gass/væske-forhold i flerefase-strömmer

Info

Publication number
NO174643C
NO174643C NO920155A NO920155A NO174643C NO 174643 C NO174643 C NO 174643C NO 920155 A NO920155 A NO 920155A NO 920155 A NO920155 A NO 920155A NO 174643 C NO174643 C NO 174643C
Authority
NO
Norway
Prior art keywords
gas
flow rate
liquid ratio
determining flow
phase streams
Prior art date
Application number
NO920155A
Other languages
English (en)
Other versions
NO174643B (no
NO920155L (no
NO920155D0 (no
Inventor
Jon Steinar Gudmundsson
Original Assignee
Jon Steinar Gudmundsson
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 Jon Steinar Gudmundsson filed Critical Jon Steinar Gudmundsson
Priority to NO920155A priority Critical patent/NO174643C/no
Publication of NO920155D0 publication Critical patent/NO920155D0/no
Priority to PCT/NO1993/000001 priority patent/WO1993014382A1/en
Publication of NO920155L publication Critical patent/NO920155L/no
Publication of NO174643B publication Critical patent/NO174643B/no
Publication of NO174643C publication Critical patent/NO174643C/no

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/18Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the time taken to traverse a fixed distance
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66Measuring 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/708Measuring the time taken to traverse a fixed distance
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/704Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
    • G01F1/708Measuring the time taken to traverse a fixed distance
    • G01F1/7082Measuring the time taken to traverse a fixed distance using acoustic detecting arrangements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/74Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02Analysing fluids
    • G01N29/024Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/24Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
    • G01P5/245Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by measuring transit time of acoustical waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/02Indexing codes associated with the analysed material
    • G01N2291/028Material parameters
    • G01N2291/02818Density, viscosity
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/02Indexing codes associated with the analysed material
    • G01N2291/028Material parameters
    • G01N2291/02836Flow rate, liquid level
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00Indexing codes associated with group G01N29/00
    • G01N2291/02Indexing codes associated with the analysed material
    • G01N2291/028Material parameters
    • G01N2291/02872Pressure

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Multimedia (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Volume Flow (AREA)
  • Sampling And Sample Adjustment (AREA)
NO920155A 1992-01-13 1992-01-13 Apparat og framgangsmåte for bestemmelse av strömningshastighet og gass/væske-forhold i flerefase-strömmer NO174643C (no)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NO920155A NO174643C (no) 1992-01-13 1992-01-13 Apparat og framgangsmåte for bestemmelse av strömningshastighet og gass/væske-forhold i flerefase-strömmer
PCT/NO1993/000001 WO1993014382A1 (en) 1992-01-13 1993-01-05 Device and method for measuring multi phase flow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO920155A NO174643C (no) 1992-01-13 1992-01-13 Apparat og framgangsmåte for bestemmelse av strömningshastighet og gass/væske-forhold i flerefase-strömmer

Publications (4)

Publication Number Publication Date
NO920155D0 NO920155D0 (no) 1992-01-13
NO920155L NO920155L (no) 1993-07-14
NO174643B NO174643B (no) 1994-02-28
NO174643C true NO174643C (no) 1994-06-08

Family

ID=19894774

Family Applications (1)

Application Number Title Priority Date Filing Date
NO920155A NO174643C (no) 1992-01-13 1992-01-13 Apparat og framgangsmåte for bestemmelse av strömningshastighet og gass/væske-forhold i flerefase-strömmer

Country Status (2)

Country Link
NO (1) NO174643C (no)
WO (1) WO1993014382A1 (no)

Families Citing this family (91)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2717573B1 (fr) * 1994-03-15 1996-06-07 Total Sa Procédé et dispositif pour la mesure et l'asservissement du débit d'un fluide polyphasique dans une canalisation de transport.
FR2721398B1 (fr) * 1994-06-21 1996-08-23 Inst Francais Du Petrole Procédé et dispositif pour surveiller par excitation périodique un flux de particules dans un conduit.
US5600073A (en) * 1994-11-02 1997-02-04 Foster-Miller, Inc. Method and system for analyzing a two phase flow
NO300437B1 (no) * 1994-11-09 1997-05-26 Jon Steinar Gudmundsson Framgangsmåte for bestemmelse av strömningsrate i en fluidström, særlig en tofaseström
US6209388B1 (en) 1996-03-11 2001-04-03 Daniel Industries, Inc. Ultrasonic 2-phase flow apparatus and method
US6151958A (en) * 1996-03-11 2000-11-28 Daniel Industries, Inc. Ultrasonic fraction and flow rate apparatus and method
US6386018B1 (en) 1996-03-11 2002-05-14 Daniel Industries, Inc. Ultrasonic 2-phase flow apparatus and stratified level detector
DE19722274A1 (de) * 1997-05-28 1998-12-03 Degussa Verfahren zur Messung von Dichte und Massenstrom
EP1090274B1 (en) * 1998-06-26 2017-03-15 Weatherford Technology Holdings, LLC Fluid parameter measurement in pipes using acoustic pressures
US6354147B1 (en) 1998-06-26 2002-03-12 Cidra Corporation Fluid parameter measurement in pipes using acoustic pressures
FR2781565B1 (fr) * 1998-07-24 2000-08-25 Inst Francais Du Petrole Procede et dispositif pour mesurer la vitesse d'ecoulement d'une veine fluide
US6463813B1 (en) 1999-06-25 2002-10-15 Weatherford/Lamb, Inc. Displacement based pressure sensor measuring unsteady pressure in a pipe
US6536291B1 (en) 1999-07-02 2003-03-25 Weatherford/Lamb, Inc. Optical flow rate measurement using unsteady pressures
US6691584B2 (en) 1999-07-02 2004-02-17 Weatherford/Lamb, Inc. Flow rate measurement using unsteady pressures
US6601458B1 (en) 2000-03-07 2003-08-05 Weatherford/Lamb, Inc. Distributed sound speed measurements for multiphase flow measurement
US6813962B2 (en) 2000-03-07 2004-11-09 Weatherford/Lamb, Inc. Distributed sound speed measurements for multiphase flow measurement
US6550345B1 (en) 2000-09-11 2003-04-22 Daniel Industries, Inc. Technique for measurement of gas and liquid flow velocities, and liquid holdup in a pipe with stratified flow
SE0003348D0 (sv) * 2000-09-18 2000-09-18 Flaekt Ab Anordning och förfarande för att mäta flödet i en fluid
WO2002025062A1 (en) * 2000-09-22 2002-03-28 Jon Steinar Gudmundsson Method for determining pressure profiles in wellbores, flowlines and pipelines, and use of such method
RU2263210C2 (ru) * 2000-09-22 2005-10-27 Йон Стейнар Гудмундссон Способ определения профилей давления в стволах скважин, выкидных линиях и трубопроводах и применение такого способа (варианты)
US6782150B2 (en) 2000-11-29 2004-08-24 Weatherford/Lamb, Inc. Apparatus for sensing fluid in a pipe
DE10062875B4 (de) * 2000-12-16 2007-02-08 Hydrometer Gmbh Durchflussmesser
GB0110732D0 (en) * 2001-05-02 2001-06-27 Psl Technology Ltd Apparatus and method
US6971259B2 (en) 2001-11-07 2005-12-06 Weatherford/Lamb, Inc. Fluid density measurement in pipes using acoustic pressures
US7059172B2 (en) 2001-11-07 2006-06-13 Weatherford/Lamb, Inc. Phase flow measurement in pipes using a density meter
US6698297B2 (en) 2002-06-28 2004-03-02 Weatherford/Lamb, Inc. Venturi augmented flow meter
US7275421B2 (en) 2002-01-23 2007-10-02 Cidra Corporation Apparatus and method for measuring parameters of a mixture having solid particles suspended in a fluid flowing in a pipe
US7032432B2 (en) 2002-01-23 2006-04-25 Cidra Corporation Apparatus and method for measuring parameters of a mixture having liquid droplets suspended in a vapor flowing in a pipe
US7328624B2 (en) 2002-01-23 2008-02-12 Cidra Corporation Probe for measuring parameters of a flowing fluid and/or multiphase mixture
ATE549602T1 (de) * 2002-01-23 2012-03-15 Cidra Corporate Services Inc Vorrichtung und verfahren zur messung von parametern einer mischung mit festpartikeln, die in einem fluid suspendiert sind, das in einem rohr fliesst
US7359803B2 (en) * 2002-01-23 2008-04-15 Cidra Corporation Apparatus and method for measuring parameters of a mixture having solid particles suspended in a fluid flowing in a pipe
EP1495291B1 (en) * 2002-04-10 2019-09-04 CiDra Corporation Probe and method for measuring parameters of a flowing fluid and/or multiphase mixture
EP1567833A2 (en) * 2002-11-12 2005-08-31 CiDra Corporation An apparatus having an array of piezoelectric film sensors for measuring parameters of a process flow within a pipe
US7165464B2 (en) 2002-11-15 2007-01-23 Cidra Corporation Apparatus and method for providing a flow measurement compensated for entrained gas
WO2004048906A2 (en) 2002-11-22 2004-06-10 Cidra Corporation Method for calibrating a flow meter having an array of sensors
CA2513248C (en) 2003-01-13 2013-01-08 Cidra Corporation Apparatus and method using an array of ultrasonic sensors for determining the velocity of a fluid within a pipe
US7096719B2 (en) 2003-01-13 2006-08-29 Cidra Corporation Apparatus for measuring parameters of a flowing multiphase mixture
DE602004017571D1 (de) 2003-01-21 2008-12-18 Expro Meters Inc Vorrichtung und verfahren zur messung der gasvolumenfraktion eines in einem rohr strömenden fluids
US7343818B2 (en) 2003-01-21 2008-03-18 Cidra Corporation Apparatus and method of measuring gas volume fraction of a fluid flowing within a pipe
US20060048583A1 (en) 2004-08-16 2006-03-09 Gysling Daniel L Total gas meter using speed of sound and velocity measurements
ATE549603T1 (de) 2003-01-21 2012-03-15 Cidra Corporate Services Inc Messung eingeschlossener und aufgelöster gase in prozessflussleitungen
WO2004065912A2 (en) 2003-01-21 2004-08-05 Cidra Corporation Apparatus and method for measuring unsteady pressures within a large diameter pipe
US7146864B2 (en) 2003-03-04 2006-12-12 Cidra Corporation Apparatus having a multi-band sensor assembly for measuring a parameter of a fluid flow flowing within a pipe
US6986276B2 (en) 2003-03-07 2006-01-17 Weatherford/Lamb, Inc. Deployable mandrel for downhole measurements
US6837098B2 (en) 2003-03-19 2005-01-04 Weatherford/Lamb, Inc. Sand monitoring within wells using acoustic arrays
WO2004109239A2 (en) 2003-06-05 2004-12-16 Cidra Corporation Apparatus for measuring velocity and flow rate of a fluid having a non-negligible axial mach number using an array of sensors
WO2005001394A2 (en) 2003-06-06 2005-01-06 Cidra Corporation A portable flow measurement apparatus having an array of sensors
US7623976B2 (en) 2003-06-24 2009-11-24 Cidra Corporate Services, Inc. System of distributed configurable flowmeters
WO2005003695A1 (en) 2003-06-24 2005-01-13 Cidra Corporation Characterizing unsteady pressures in pipes using optical measurement devices
US7197938B2 (en) 2003-06-24 2007-04-03 Cidra Corporation Contact-based transducers for characterizing unsteady pressures in pipes
WO2005054789A1 (en) 2003-07-08 2005-06-16 Cidra Corporation Method and apparatus for measuring characteristics of core-annular flow
US7134320B2 (en) 2003-07-15 2006-11-14 Cidra Corporation Apparatus and method for providing a density measurement augmented for entrained gas
WO2005010469A2 (en) 2003-07-15 2005-02-03 Cidra Corporation A dual function flow measurement apparatus having an array of sensors
US7322251B2 (en) 2003-08-01 2008-01-29 Cidra Corporation Method and apparatus for measuring a parameter of a high temperature fluid flowing within a pipe using an array of piezoelectric based flow sensors
WO2005012843A2 (en) 2003-08-01 2005-02-10 Cidra Corporation Method and apparatus for measuring parameters of a fluid flowing within a pipe using a configurable array of sensors
US7882750B2 (en) 2003-08-01 2011-02-08 Cidra Corporate Services, Inc. Method and apparatus for measuring parameters of a fluid flowing within a pipe using a configurable array of sensors
CA2537800C (en) 2003-08-08 2013-02-19 Cidra Corporation Piezocable based sensor for measuring unsteady pressures inside a pipe
US6910388B2 (en) 2003-08-22 2005-06-28 Weatherford/Lamb, Inc. Flow meter using an expanded tube section and sensitive differential pressure measurement
US7110893B2 (en) 2003-10-09 2006-09-19 Cidra Corporation Method and apparatus for measuring a parameter of a fluid flowing within a pipe using an array of sensors
US7237440B2 (en) 2003-10-10 2007-07-03 Cidra Corporation Flow measurement apparatus having strain-based sensors and ultrasonic sensors
US7171315B2 (en) 2003-11-25 2007-01-30 Cidra Corporation Method and apparatus for measuring a parameter of a fluid flowing within a pipe using sub-array processing
US7152003B2 (en) 2003-12-11 2006-12-19 Cidra Corporation Method and apparatus for determining a quality metric of a measurement of a fluid parameter
BRPI0508637B1 (pt) 2004-03-10 2017-10-10 Cidra Corporation Method and apparatus for measuring parameters of a stratified flow
US7330797B2 (en) 2004-03-10 2008-02-12 Cidra Corporation Apparatus and method for measuring settlement of solids in a multiphase flow
US7367239B2 (en) 2004-03-23 2008-05-06 Cidra Corporation Piezocable based sensor for measuring unsteady pressures inside a pipe
GB0407982D0 (en) * 2004-04-08 2004-05-12 Wood Group Logging Services In "Methods of monitoring downhole conditions"
US7426852B1 (en) 2004-04-26 2008-09-23 Expro Meters, Inc. Submersible meter for measuring a parameter of gas hold-up of a fluid
WO2005116637A2 (en) 2004-05-17 2005-12-08 Cidra Corporation Apparatus and method for measuring the composition of a mixture
WO2006112878A2 (en) 2004-09-16 2006-10-26 Cidra Corporation Apparatus and method for providing a fluid cut measurement of a multi-liquid mixture compensated for entrained gas
US7962293B2 (en) 2005-03-10 2011-06-14 Expro Meters, Inc. Apparatus and method for providing a stratification metric of a multiphase fluid flowing within a pipe
WO2010120258A2 (en) 2005-03-17 2010-10-21 Cidra Corporation An apparatus and method of processing data to improve the performance of a flow monitoring system
US7657392B2 (en) 2005-05-16 2010-02-02 Cidra Corporate Services, Inc. Method and apparatus for detecting and characterizing particles in a multiphase fluid
WO2006130499A2 (en) 2005-05-27 2006-12-07 Cidra Corporation An apparatus and method for fiscal measuring of an aerated fluid
US7526966B2 (en) 2005-05-27 2009-05-05 Expro Meters, Inc. Apparatus and method for measuring a parameter of a multiphase flow
WO2006134199A1 (en) * 2005-06-16 2006-12-21 Justiflow Oy Ultrasound flowmeter arrangement for determining speed of sound
EP1899686B1 (en) 2005-07-07 2011-09-28 CiDra Corporation Wet gas metering using a differential pressure based flow meter with a sonar based flow meter
US7603916B2 (en) 2005-07-07 2009-10-20 Expro Meters, Inc. Wet gas metering using a differential pressure and a sonar based flow meter
US7503217B2 (en) 2006-01-27 2009-03-17 Weatherford/Lamb, Inc. Sonar sand detection
US7454981B2 (en) 2006-05-16 2008-11-25 Expro Meters. Inc. Apparatus and method for determining a parameter in a wet gas flow
US7624650B2 (en) 2006-07-27 2009-12-01 Expro Meters, Inc. Apparatus and method for attenuating acoustic waves propagating within a pipe wall
US7624651B2 (en) 2006-10-30 2009-12-01 Expro Meters, Inc. Apparatus and method for attenuating acoustic waves in pipe walls for clamp-on ultrasonic flow meter
US8346491B2 (en) 2007-02-23 2013-01-01 Expro Meters, Inc. Sonar-based flow meter operable to provide product identification
US8229686B2 (en) 2007-06-28 2012-07-24 Expro Meters, Inc. Apparatus and method for measuring liquid and gas flow rates in a stratified multi-phase flow
US8862411B2 (en) 2007-08-24 2014-10-14 Expro Meters, Inc. Velocity and impingement method for determining parameters of a particle/fluid flow
HUP0700785A2 (en) * 2007-12-05 2009-06-29 Thormed Kft Method and apparatus for determining the flow parameters of a streaming medium
US7831398B2 (en) 2007-12-20 2010-11-09 Expro Meters, Inc. Method for quantifying varying propagation characteristics of normal incident ultrasonic signals as used in correlation based flow measurement
US7963177B2 (en) 2008-04-10 2011-06-21 Expro Meters, Inc. Apparatus for attenuating ultrasonic waves propagating within a pipe wall
WO2009149361A1 (en) 2008-06-05 2009-12-10 Expro Meters, Inc. Method and apparatus for making a water cut determination using a sequestered liquid-continuous stream
WO2010003063A2 (en) 2008-07-03 2010-01-07 Expro Meters, Inc. Apparatus for attenuating ultrasonic waves propagating within a pipe wall
GB2472081B (en) 2009-07-24 2014-03-05 Bios Developments Ltd A method for determining speed of a signal species in a medium and associated apparatus
CN105891538B (zh) * 2016-04-05 2020-04-17 Oppo广东移动通信有限公司 可测试水流速度的移动终端及其使用方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2151203A (en) * 1935-12-23 1939-03-21 Hugh B Wilcox Fluid meter and method of measuring the rate of flow of fluids
US3514071A (en) * 1967-04-14 1970-05-26 United Aircraft Corp Shock pulse generator
US3469445A (en) * 1967-07-20 1969-09-30 United Aircraft Corp Gas flow measuring system
US3496771A (en) * 1968-03-04 1970-02-24 United Aircraft Corp Mass flow measuring device for a gaseous medium
CH669463A5 (en) * 1985-03-21 1989-03-15 Walter Guggenbuehl Prof Dr Gas flow and temp. measuring device - uses ultrasonic pulses transmitted simultaneously in opposite directions at angle to gas flow
FI76885C (fi) * 1987-01-16 1988-12-12 Valtion Teknillinen Akustiskt stroemningsmaetningsfoerfarande och anordning foer tillaempning av detta.

Also Published As

Publication number Publication date
NO174643B (no) 1994-02-28
WO1993014382A1 (en) 1993-07-22
NO920155L (no) 1993-07-14
NO920155D0 (no) 1992-01-13

Similar Documents

Publication Publication Date Title
NO174643C (no) Apparat og framgangsmåte for bestemmelse av strömningshastighet og gass/væske-forhold i flerefase-strömmer
NO944447D0 (no) Fremgangsmåte og apparat for måling av masseströmningsmengde av fluidbestanddeler i en flerfase pluggström
NO174119C (no) Fremgangsmåte og anordning for kontinuerlig måling av væskeströmhastighet
NO954512L (no) Apparat og fremgangsmåte for gass/væskeseparasjon
NO943842D0 (no) Fremgangsmåte og apparat for måling av partikkelhastighet i fluid
NO961191L (no) Fremgangsmåte og apparat for lokal måling av strömnings parametere for et flerfasefluidum
EP0454166A3 (en) Traffic flow measuring method and apparatus
NO173469C (no) Fremgangsmaate og apparat for maaling av andelene av forskjellige komponenter i en raaljeblanding som stroemmer i en roerledning
DK0562260T3 (da) Apparat og fremgangsmåde med vendbar strømning til analyse af væskeprøver
DK0561458T3 (da) Fremgangsmåde og apparat til rensning af vand
DK0713080T3 (da) Fremgangsmåde og anordning til måling med "sing-around"-teknik
NO952540L (no) Fremgangsmåte og apparat for måling av strömningshastigheter ved bruk av sporstoffteknikker
DK510184A (da) Fremgangsmaade og apparat til maaling af fluidstroem
NO833983L (no) Apparat til maaling av gassfraksjon i en tokomponentstroem bestaaende av vaeske og gass i blanding
ITMI941889A0 (it) Metodo e dispositivo per il controllo della portata di gas vettore in apparecchi gascromatografici
NO934526L (no) Fremgangsmaate og apparat for bestemmelse av samlet mengdestroem i et ventilasjonsanlegg
DK0687197T3 (da) Apparat til indføring og spredning af luft eller en anden gas i en væske
DK529784D0 (da) Fremgangsmaade og apparat til maaling af en fluidstroem
NO932801L (no) Framgangsmåte og apparat for måling av tetthet og trykktap i en strömmende væske
GB2259983B (en) Method and apparatus for determining the velocity of a flowing liquid
DK0383585T3 (da) Fremgangsmåde og apparat til bestemmelse af fluidumstrømvolumen
EP0734225A4 (en) DEVICE AND METHOD FOR MEASURING A LIQUID AND / OR GAS FLOW
NO960007D0 (no) Apparat og fremgangsmåte for måling av strömningsmengde
NO960832L (no) Fremgangsmåte og apparat for å bestemme konsentrasjonen av en komponent i disposisjon i en fluidström
DK106583D0 (da) Fremgangsmade og apparat til regulering af vaeskeflow, isaer i selvvandingsanlaeg til drivhuse

Legal Events

Date Code Title Description
MK1K Patent expired