IT1244170B - Apparecchiatura laser per la misura della velocita' di un fluido. - Google Patents

Apparecchiatura laser per la misura della velocita' di un fluido.

Info

Publication number
IT1244170B
IT1244170B IT02227890A IT2227890A IT1244170B IT 1244170 B IT1244170 B IT 1244170B IT 02227890 A IT02227890 A IT 02227890A IT 2227890 A IT2227890 A IT 2227890A IT 1244170 B IT1244170 B IT 1244170B
Authority
IT
Italy
Prior art keywords
fluid
measuring
speed
laser equipment
laser
Prior art date
Application number
IT02227890A
Other languages
English (en)
Other versions
IT9022278A0 (it
IT9022278A1 (it
Inventor
Mario Martinelli
Valeria Gusmeroli
Original Assignee
Cise Spa
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 Cise Spa filed Critical Cise Spa
Priority to IT02227890A priority Critical patent/IT1244170B/it
Publication of IT9022278A0 publication Critical patent/IT9022278A0/it
Priority to DE69111392T priority patent/DE69111392D1/de
Priority to DK91203152.3T priority patent/DK0489474T3/da
Priority to EP91203152A priority patent/EP0489474B1/en
Priority to US07/803,485 priority patent/US5268739A/en
Publication of IT9022278A1 publication Critical patent/IT9022278A1/it
Application granted granted Critical
Publication of IT1244170B publication Critical patent/IT1244170B/it

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
    • G01F1/661—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 using light
    • 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
    • G01P5/26—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 direct influence of the streaming fluid on the properties of a detecting optical wave
IT02227890A 1990-12-04 1990-12-04 Apparecchiatura laser per la misura della velocita' di un fluido. IT1244170B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT02227890A IT1244170B (it) 1990-12-04 1990-12-04 Apparecchiatura laser per la misura della velocita' di un fluido.
DE69111392T DE69111392D1 (de) 1990-12-04 1991-12-03 Lasergerät zur Messung der Geschwindigkeit von Flüssigkeiten.
DK91203152.3T DK0489474T3 (da) 1990-12-04 1991-12-03 Laserapparat til måling af hastigheden af et fluidt medium
EP91203152A EP0489474B1 (en) 1990-12-04 1991-12-03 Laser apparatus for measuring the velocity of a fluid
US07/803,485 US5268739A (en) 1990-12-04 1991-12-04 Laser apparatus for measuring the velocity of a fluid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT02227890A IT1244170B (it) 1990-12-04 1990-12-04 Apparecchiatura laser per la misura della velocita' di un fluido.

Publications (3)

Publication Number Publication Date
IT9022278A0 IT9022278A0 (it) 1990-12-04
IT9022278A1 IT9022278A1 (it) 1992-06-05
IT1244170B true IT1244170B (it) 1994-07-08

Family

ID=11194077

Family Applications (1)

Application Number Title Priority Date Filing Date
IT02227890A IT1244170B (it) 1990-12-04 1990-12-04 Apparecchiatura laser per la misura della velocita' di un fluido.

Country Status (5)

Country Link
US (1) US5268739A (it)
EP (1) EP0489474B1 (it)
DE (1) DE69111392D1 (it)
DK (1) DK0489474T3 (it)
IT (1) IT1244170B (it)

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US5404221A (en) * 1993-02-24 1995-04-04 Zygo Corporation Extended-range two-color interferometer
US5414509A (en) * 1993-03-08 1995-05-09 Associated Universities, Inc. Optical pressure/density measuring means
US5701172A (en) * 1995-06-07 1997-12-23 Gas Research Institute Optical flowmeter
FR2750215B1 (fr) * 1996-06-25 1998-09-11 Sextant Avionique Sonde velocimetrique optique
JP2877119B2 (ja) * 1996-12-26 1999-03-31 日本電気株式会社 移動体の速度測定装置
EP0924507B1 (en) * 1997-12-22 2003-08-13 Optical Technologies U.S.A. Corp. Interferometer for measurements of optical properties in bulk samples
US6181429B1 (en) 1997-12-22 2001-01-30 Pirelli Cavi E Sistemi S.P.A. Interferometer for measurements of optical properties in bulk samples
US6510842B2 (en) 2000-07-03 2003-01-28 Murad M. Ismailov Flow meter
US6429926B1 (en) * 2001-01-08 2002-08-06 Nova Gas Transmission Ltd. Optical flow meter capable of operating with a variable refractive index
US20110005507A9 (en) * 2001-01-23 2011-01-13 Rick Bagwell Real-time control of exhaust flow
US20020140942A1 (en) * 2001-02-17 2002-10-03 Fee Michale Sean Acousto-optic monitoring and imaging in a depth sensitive manner
US6469787B1 (en) 2001-04-03 2002-10-22 Ohio Aerospace Institute Dynamic light scattering homodyne probe
WO2005047907A1 (en) * 2003-10-14 2005-05-26 Trex Enterprises Corporation Optical flow monitor
US20060020239A1 (en) * 2004-07-20 2006-01-26 Geiger Mark A Cerebral spinal fluid flow sensing device
PL1778418T5 (pl) 2004-07-23 2014-09-30 Oy Halton Group Ltd Ulepszenie sterowania systemów wyciągowych
US7126586B2 (en) * 2004-09-17 2006-10-24 Microsoft Corporation Data input devices and methods for detecting movement of a tracking surface by detecting laser doppler self-mixing effects of a frequency modulated laser light beam
GB0616837D0 (en) * 2006-08-25 2006-10-04 Moir Christopher I Velocity detector
US20080274683A1 (en) 2007-05-04 2008-11-06 Current Energy Controls, Lp Autonomous Ventilation System
US20090061752A1 (en) 2007-08-28 2009-03-05 Current Energy Controls, Lp Autonomous Ventilation System
BRPI0917043B1 (pt) 2008-12-03 2019-11-26 Oy Halton Group Ltd método para controlar o fluxo de ar de exaustão em um sistema de ventilação de exaustão, e sistema de ventilação de exaustão
CN102323445B (zh) * 2011-06-14 2012-11-21 华中科技大学 一种测量重频激光器腔内循环气体流动速度的方法
RU2627966C1 (ru) * 2016-11-07 2017-08-14 федеральное государственное бюджетное образовательное учреждение высшего образования "Московский государственный технический университет имени Н.Э. Баумана (национальный исследовательский университет)" (МГТУ им. Н.Э. Баумана) Сверхчувствительная гидроакустическая антенна на основе волоконно-оптических гидрофонов, использующая многоэлементные приёмники
CN108594426B (zh) * 2018-01-30 2023-06-30 中国工程物理研究院激光聚变研究中心 一种光延迟器及其使用方法
CN113984606A (zh) * 2021-10-14 2022-01-28 上海北分科技股份有限公司 具有背景光补偿功能的激光后向散射粉尘仪及其使用方法

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
DE3175571D1 (en) * 1981-12-28 1986-12-11 Dantec Elektronik Med Laser-doppler-anemometer
JPS58182524A (ja) * 1982-04-20 1983-10-25 Sumitomo Electric Ind Ltd 光周波数変化検出方式
US4818071A (en) * 1985-03-26 1989-04-04 Andrew Corporation Fiber optic doppler anemometer
US4627731A (en) * 1985-09-03 1986-12-09 United Technologies Corporation Common optical path interferometric gauge
GB8705844D0 (en) * 1987-03-12 1987-04-15 Secr Defence Dynamic light scattering apparatus
DE3719806A1 (de) * 1987-06-13 1988-12-22 Basf Ag Fiberoptischer sensor
US4892406A (en) * 1988-01-11 1990-01-09 United Technologies Corporation Method of and arrangement for measuring vibrations
DE3820654A1 (de) * 1988-06-18 1989-12-21 Deutsche Forsch Luft Raumfahrt Verfahren und vorrichtung zur bestimmung des vorzeichens der richtung einer teilchenstroemung
JP2726882B2 (ja) * 1988-11-21 1998-03-11 日本電信電話株式会社 後方散乱光測定装置
FR2640755B1 (fr) * 1988-12-15 1991-03-22 Crouzet Sa Anemometre laser a plusieurs directions de mesure
US5012118A (en) * 1989-12-13 1991-04-30 Preikschat F K Apparatus and method for particle analysis

Also Published As

Publication number Publication date
EP0489474A1 (en) 1992-06-10
EP0489474B1 (en) 1995-07-19
DE69111392D1 (de) 1995-08-24
US5268739A (en) 1993-12-07
DK0489474T3 (da) 1995-11-27
IT9022278A0 (it) 1990-12-04
IT9022278A1 (it) 1992-06-05

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Legal Events

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0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961127