DE69225331D1 - Entfernung/Flüssigkeitspegel- Messung unter Verwendung einer Laserdiode - Google Patents

Entfernung/Flüssigkeitspegel- Messung unter Verwendung einer Laserdiode

Info

Publication number
DE69225331D1
DE69225331D1 DE69225331T DE69225331T DE69225331D1 DE 69225331 D1 DE69225331 D1 DE 69225331D1 DE 69225331 T DE69225331 T DE 69225331T DE 69225331 T DE69225331 T DE 69225331T DE 69225331 D1 DE69225331 D1 DE 69225331D1
Authority
DE
Germany
Prior art keywords
distance
liquid level
laser diode
level measurement
measurement
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
DE69225331T
Other languages
English (en)
Other versions
DE69225331T2 (de
Inventor
Richard Meinzer
Bruce Zepke
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.)
Raytheon Technologies Corp
Original Assignee
United Technologies Corp
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 United Technologies Corp filed Critical United Technologies Corp
Application granted granted Critical
Publication of DE69225331D1 publication Critical patent/DE69225331D1/de
Publication of DE69225331T2 publication Critical patent/DE69225331T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
    • G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
    • G01F23/68—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means
    • G01F23/686—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means using opto-electrically actuated indicating means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
DE69225331T 1991-11-27 1992-11-19 Entfernung/Flüssigkeitspegel- Messung unter Verwendung einer Laserdiode Expired - Fee Related DE69225331T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/800,336 US5257090A (en) 1991-11-27 1991-11-27 Laser diode liquid-level/distance measurement
PCT/US1992/009847 WO1993011449A1 (en) 1991-11-27 1992-11-19 Laser diode liquid-level/distance measurement

Publications (2)

Publication Number Publication Date
DE69225331D1 true DE69225331D1 (de) 1998-06-04
DE69225331T2 DE69225331T2 (de) 1998-08-27

Family

ID=25178142

Family Applications (2)

Application Number Title Priority Date Filing Date
DE0614537T Pending DE614537T1 (de) 1991-11-27 1992-11-19 Entfernung/Flüssigkeitspegel- Messung unter Verwendung einer Laserdiode.
DE69225331T Expired - Fee Related DE69225331T2 (de) 1991-11-27 1992-11-19 Entfernung/Flüssigkeitspegel- Messung unter Verwendung einer Laserdiode

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE0614537T Pending DE614537T1 (de) 1991-11-27 1992-11-19 Entfernung/Flüssigkeitspegel- Messung unter Verwendung einer Laserdiode.

Country Status (8)

Country Link
US (1) US5257090A (de)
EP (1) EP0614537B1 (de)
JP (1) JPH07501618A (de)
CA (1) CA2120504A1 (de)
DE (2) DE614537T1 (de)
ES (1) ES2072240T3 (de)
RU (1) RU2101731C1 (de)
WO (1) WO1993011449A1 (de)

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US6715437B1 (en) * 2002-01-29 2004-04-06 Electromechanical Research Laboratories, Inc. Liquid-cargo loss detection gauge
US8020301B2 (en) * 2003-03-28 2011-09-20 Ntn Corporation Method for manufacturing hydro dynamic bearing device
US6938478B2 (en) * 2002-11-14 2005-09-06 Herman Diaz Arias Impedance level meter for liquids in tanks
US6907371B2 (en) * 2003-05-08 2005-06-14 International Truck Intellectual Property Company, Llc Fuel-level-detection system, calibration method, and calibration system
DE20310723U1 (de) * 2003-07-12 2004-11-18 E.L.B.-Füllstandsgeräte Bundschuh GmbH + Co. Schutzeinrichtung für Tauchsonden
US9898712B2 (en) 2004-02-03 2018-02-20 Rtc Industries, Inc. Continuous display shelf edge label device
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US7193233B2 (en) * 2004-05-10 2007-03-20 The Futurestar Corporation Variable area flow rate meter using optical sensing of float position in the duct
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US20070284550A1 (en) * 2005-05-10 2007-12-13 Smith Daniel J Variable area flow rate meter using optical sensing of float position in the duct
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US7586584B2 (en) 2005-11-10 2009-09-08 Elbit Systems Ltd. Determination of range to a coherent light source using laser speckle pattern
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US7824730B2 (en) * 2007-08-31 2010-11-02 United Technologies Corporation Method and apparatus for measuring coating thickness with a laser
JP5663130B2 (ja) * 2008-03-18 2015-02-04 アズビル株式会社 反射型光電スイッチおよび物体検出方法
CZ301826B6 (cs) * 2008-03-21 2010-06-30 Biologické centrum AV CR, v.v.i., Ústav molekulární biologie rostlin Zpusob výzkumu dynamiky objemových zmen fyziologicky, zejména fotosynteticky aktivních vzorku, a zarízení k provádení tohoto zpusobu
US8159660B2 (en) * 2008-04-04 2012-04-17 Leddartech Inc. Optical level measurement device and method
US7635854B1 (en) 2008-07-09 2009-12-22 Institut National D'optique Method and apparatus for optical level sensing of agitated fluid surfaces
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FR2960063B1 (fr) * 2010-05-11 2013-05-10 Toulouse Inst Nat Polytech Dispositif de mesure optique d'un parametre physique
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WO2012174582A1 (en) * 2011-06-21 2012-12-27 Pioneer Waste Management Holdings Trust Pty Limited System and method for determining fluid level
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US8915133B2 (en) * 2012-09-24 2014-12-23 Rosemount Tank Radar Ab Arrangement and method for testing a level gauge system
CA2840659A1 (en) * 2013-01-23 2014-07-23 The Governors Of The University Of Alberta Apparatus and method for measuring the quantity and optical parameters of a liquid in a container using the principle of optical low coherence reflectometry
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RU2627569C1 (ru) * 2016-04-20 2017-08-08 Федеральное государственное бюджетное учреждение "ВЫСОКОГОРНЫЙ ГЕОФИЗИЧЕСКИЙ ИНСТИТУТ" (ФГБУ "ВГИ") Устройство для измерения уровня воды в водоемах
IT201600080099A1 (it) * 2016-07-29 2018-01-29 Ideas & Motion S R L Misura senza contatto del livello di un liquido in un contenitore
IT201600080092A1 (it) * 2016-07-29 2018-01-29 Ideas & Motion S R L Misura senza contatto del livello di un liquido in un contenitore
RU178306U1 (ru) * 2016-10-12 2018-03-29 Альберт Галиуллович Абдуллин Лазерный уровнемер жидкости
CN107246902A (zh) * 2017-07-05 2017-10-13 歌尔股份有限公司 一种3d打印液体材料的液面高度检测方法和系统
CN108390246A (zh) * 2018-04-28 2018-08-10 无锡源清瑞光激光科技有限公司 一种模块化合束的准连续光纤激光器
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RU2707979C1 (ru) * 2019-05-21 2019-12-03 Владислав Николаевич Астапов Гидростатический оптоволоконный датчик уровня жидкости с позиционно-чувствительным детектором
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FR2594959B1 (fr) * 1986-02-24 1988-09-09 Electricite De France Procede et dispositif de mesure optique de la distance et de la vitesse d'une cible
US5020901A (en) * 1990-01-30 1991-06-04 The Perkin-Elmer Corporation Multimode laser diode system for range measurement

Also Published As

Publication number Publication date
DE69225331T2 (de) 1998-08-27
EP0614537A1 (de) 1994-09-14
JPH07501618A (ja) 1995-02-16
DE614537T1 (de) 1995-08-03
US5257090A (en) 1993-10-26
RU2101731C1 (ru) 1998-01-10
ES2072240T1 (es) 1995-07-16
EP0614537B1 (de) 1998-04-29
ES2072240T3 (es) 1998-07-01
CA2120504A1 (en) 1993-06-10
WO1993011449A1 (en) 1993-06-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee