WO2000003249A3 - Verfahren und vorrichtung zur nichtinvasiven messung der geschwindigkeit eines gases oder einer flüssigkeit - Google Patents

Verfahren und vorrichtung zur nichtinvasiven messung der geschwindigkeit eines gases oder einer flüssigkeit Download PDF

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Publication number
WO2000003249A3
WO2000003249A3 PCT/DE1999/002123 DE9902123W WO0003249A3 WO 2000003249 A3 WO2000003249 A3 WO 2000003249A3 DE 9902123 W DE9902123 W DE 9902123W WO 0003249 A3 WO0003249 A3 WO 0003249A3
Authority
WO
WIPO (PCT)
Prior art keywords
molecules
atoms
test site
gas
liquid
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.)
Ceased
Application number
PCT/DE1999/002123
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English (en)
French (fr)
Other versions
WO2000003249A2 (de
Inventor
Martin Naegele
Wilfried Staude
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US09/743,021 priority Critical patent/US6433861B1/en
Priority to EP99960692A priority patent/EP1110093A2/de
Publication of WO2000003249A2 publication Critical patent/WO2000003249A2/de
Publication of WO2000003249A3 publication Critical patent/WO2000003249A3/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G01P5/18—Measuring 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
    • 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
    • G01F1/704—Measuring 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
    • G01F1/708—Measuring the time taken to traverse a fixed distance
    • G01F1/7086—Measuring the time taken to traverse a fixed distance using optical detecting arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/24—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing the transmission of wave or particle radiation through the material
    • 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
    • G01P5/001—Full-field flow measurement, e.g. determining flow velocity and direction in a whole region at the same time, flow visualisation

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Fluid Mechanics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

Verfahren zur nichtinvasiven Messung der Geschwindigkeit eines Gases oder einer Flüssigkeit an einem Untersuchungsort, mit den folgenden Schritten: i) Anheben von in dem Gas oder der Flüssigkeit vorhandenen Atomen und/oder Molekülen in einen angeregten Atom- bzw. Molekülzustand mittels eines im Untersuchungsort fokussierten ersten gepulsten Lichtstrahls einer Lichtquelle; j) nach einem Zeitintervall Δt, das mindestens so groß gewählt ist, daß die angeregten Atome und/oder Moleküle durch Relaxation in metastabile Zustände zurückgekehrt sind, selektives Anheben der in den metastabilen Zuständen befindlichen Atome und/oder Moleküle in einen angeregten Atom- bzw. Molekülzustand mittels eines den Untersuchungsort und den vermuteten momentanen Aufenthaltsort der Atome und/oder Moleküle enthaltenden Raumbereiches durchstrahlenden, gegenüber dem ersten Lichtstrahl intensitätsschwächeren zweiten gepulsten Lichtstrahls der Lichtquelle, so daß eine charakteristische Lumineszenz erzeugt wird; k) Detektieren der charakteristischen Lumineszenz der selektiv angeregten Atome und/oder Moleküle und Bestimmen der Koordinaten des Untersuchungsortes und des Aufretens von Lumineszenz (Lumineszenz-Wolke) in einem Bildfeld; und l) Berechnen der Geschwindigkeit v des Gases oder Flüssigkeit anhand der Entfernung s zwischen dem Untersuchungsort und dem Mittelpunkt der Lumineszenz-Wolke sowie des Zeitintervalls Δt wie folgt: v = s/Δt.
PCT/DE1999/002123 1998-07-04 1999-07-05 Verfahren und vorrichtung zur nichtinvasiven messung der geschwindigkeit eines gases oder einer flüssigkeit Ceased WO2000003249A2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US09/743,021 US6433861B1 (en) 1998-07-04 1999-07-05 Method and apparatus for a non-invasive measurement of the velocity of a gas or a fluid medium
EP99960692A EP1110093A2 (de) 1998-07-04 1999-07-05 Verfahren und vorrichtung zur nichtinvasiven messung der geschwindigkeit eines gases oder einer flüssigkeit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19829940.0 1998-07-04
DE19829940A DE19829940A1 (de) 1998-07-04 1998-07-04 Methode und Anordnung zur Messung der räumlichen und zeitlichen Entwicklung einer laserinduzierten Anregung in Flüssigkeiten/Gasen

Publications (2)

Publication Number Publication Date
WO2000003249A2 WO2000003249A2 (de) 2000-01-20
WO2000003249A3 true WO2000003249A3 (de) 2000-03-16

Family

ID=7872985

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/002123 Ceased WO2000003249A2 (de) 1998-07-04 1999-07-05 Verfahren und vorrichtung zur nichtinvasiven messung der geschwindigkeit eines gases oder einer flüssigkeit

Country Status (4)

Country Link
US (1) US6433861B1 (de)
EP (1) EP1110093A2 (de)
DE (1) DE19829940A1 (de)
WO (1) WO2000003249A2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10012228C1 (de) * 2000-03-14 2001-09-27 Igl Ingenieur Gemeinschaft Luf Verfahren und Vorrichtung zum Bestimmen der Strömungsgeschwindigkeit eines gasförmigen Mediums
DE10012395B4 (de) 2000-03-15 2010-04-29 Abb Research Ltd. Durchflussmesser
AU2001274919A1 (en) * 2000-05-23 2001-12-03 Arizona Board Of Regents Novel method and apparatus for flow monitoring in micro-fluidic devices
US7675619B2 (en) * 2007-11-14 2010-03-09 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Micro-LiDAR velocity, temperature, density, concentration sensor
US8866322B2 (en) * 2009-07-29 2014-10-21 Michigan Aerospace Corporation Atmospheric measurement system
US8660714B2 (en) * 2011-02-22 2014-02-25 Honeywell International Inc. Aircraft systems and methods for providing exhaust warnings
WO2016028912A1 (en) * 2014-08-19 2016-02-25 Li-Cor, Inc. Systems and methods for determining velocity and flux of a gas
CN111486913A (zh) * 2020-04-26 2020-08-04 上海集迦电子科技有限公司 一种具有荧光材料的光纤流量计及控制方法
CN118294694A (zh) * 2024-04-18 2024-07-05 中国人民解放军国防科技大学 一种基于强发光截面原子示踪的流场表征方法

Citations (4)

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Publication number Priority date Publication date Assignee Title
US4483614A (en) * 1981-12-08 1984-11-20 Lockheed Corporation Optical air data measurement system
EP0374822A1 (de) * 1988-12-22 1990-06-27 Honeywell Inc. Gepulstes Fluoreszenz-Geschwindigkeitsmessgerät und Verfahren zum Messen der Geschwindigkeit mittels Fluoreszenz
JPH08278251A (ja) * 1995-04-05 1996-10-22 Mitsubishi Heavy Ind Ltd レーザ誘起蛍光法による計測装置
US5708495A (en) * 1995-09-01 1998-01-13 Vanderbilt University Method and apparatus for determining the velocity of a gas flow

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Publication number Priority date Publication date Assignee Title
US3795448A (en) * 1972-06-28 1974-03-05 Nasa Doppler shift system
US4228353A (en) * 1978-05-02 1980-10-14 Johnson Steven A Multiple-phase flowmeter and materials analysis apparatus and method
US4649426A (en) * 1984-06-12 1987-03-10 The United States Of America As Represented By The United States Department Of Energy Electronic imaging system and technique
US4807990A (en) * 1986-10-28 1989-02-28 University Of Tennessee Research Corporation Laser fluorescence velocimeter
AU618602B2 (en) * 1988-06-03 1992-01-02 Commonwealth Scientific And Industrial Research Organisation Measurement of flow velocity and mass flowrate
US4919536A (en) * 1988-06-06 1990-04-24 Northrop Corporation System for measuring velocity field of fluid flow utilizing a laser-doppler spectral image converter
US4988190A (en) * 1990-01-05 1991-01-29 Trustees Of Princeton University Absorption line filter window and method for velocity measurements by light scattering
GB9411280D0 (en) * 1994-06-06 1994-07-27 Isis Innovation Fluid velocity measurement apparatus
US5543617A (en) * 1994-06-27 1996-08-06 Schlumberger Technology Corporation Method of measuring flow velocities using tracer techniques

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4483614A (en) * 1981-12-08 1984-11-20 Lockheed Corporation Optical air data measurement system
EP0374822A1 (de) * 1988-12-22 1990-06-27 Honeywell Inc. Gepulstes Fluoreszenz-Geschwindigkeitsmessgerät und Verfahren zum Messen der Geschwindigkeit mittels Fluoreszenz
JPH08278251A (ja) * 1995-04-05 1996-10-22 Mitsubishi Heavy Ind Ltd レーザ誘起蛍光法による計測装置
US5708495A (en) * 1995-09-01 1998-01-13 Vanderbilt University Method and apparatus for determining the velocity of a gas flow

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"AIR-FLOW VISUALIZATION USING THE PHOTOLUMINESCENCE OF INFRARED-SENSITIVE PHOSPHOR", IBM TECHNICAL DISCLOSURE BULLETIN,US,IBM CORP. NEW YORK, vol. 34, no. 2, pages 48-49, XP000210560, ISSN: 0018-8689 *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 02 28 February 1997 (1997-02-28) *

Also Published As

Publication number Publication date
US6433861B1 (en) 2002-08-13
WO2000003249A2 (de) 2000-01-20
DE19829940A1 (de) 2000-01-05
EP1110093A2 (de) 2001-06-27

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