FI884142A - System foer maetning av ljusdispersion. - Google Patents

System foer maetning av ljusdispersion. Download PDF

Info

Publication number
FI884142A
FI884142A FI884142A FI884142A FI884142A FI 884142 A FI884142 A FI 884142A FI 884142 A FI884142 A FI 884142A FI 884142 A FI884142 A FI 884142A FI 884142 A FI884142 A FI 884142A
Authority
FI
Finland
Prior art keywords
ljusdispersion
system foer
foer maetning
maetning
foer
Prior art date
Application number
FI884142A
Other languages
English (en)
Other versions
FI884142A0 (fi
Inventor
Horst Huettmann
Original Assignee
Vaisala Oy
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 Vaisala Oy filed Critical Vaisala Oy
Priority to FI884142A priority Critical patent/FI884142A/fi
Publication of FI884142A0 publication Critical patent/FI884142A0/fi
Priority to EP89309088A priority patent/EP0358507A3/en
Priority to JP1231791A priority patent/JPH02186239A/ja
Priority to AU41229/89A priority patent/AU623430B2/en
Publication of FI884142A publication Critical patent/FI884142A/fi
Priority to US07/663,785 priority patent/US5116124A/en

Links

Classifications

    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G01N21/538—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke for determining atmospheric attenuation and visibility
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N2021/4704—Angular selective
    • G01N2021/4709—Backscatter
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/08—Optical fibres; light guides
FI884142A 1988-09-08 1988-09-08 System foer maetning av ljusdispersion. FI884142A (fi)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI884142A FI884142A (fi) 1988-09-08 1988-09-08 System foer maetning av ljusdispersion.
EP89309088A EP0358507A3 (en) 1988-09-08 1989-09-07 Measurement system for scattering of light
JP1231791A JPH02186239A (ja) 1988-09-08 1989-09-08 光学密度の測定装置
AU41229/89A AU623430B2 (en) 1988-09-08 1989-09-08 Measurement system for scattering of light
US07/663,785 US5116124A (en) 1988-09-08 1991-03-04 Measurement system for scattering of light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI884142A FI884142A (fi) 1988-09-08 1988-09-08 System foer maetning av ljusdispersion.

Publications (2)

Publication Number Publication Date
FI884142A0 FI884142A0 (fi) 1988-09-08
FI884142A true FI884142A (fi) 1990-03-09

Family

ID=8527014

Family Applications (1)

Application Number Title Priority Date Filing Date
FI884142A FI884142A (fi) 1988-09-08 1988-09-08 System foer maetning av ljusdispersion.

Country Status (5)

Country Link
US (1) US5116124A (fi)
EP (1) EP0358507A3 (fi)
JP (1) JPH02186239A (fi)
AU (1) AU623430B2 (fi)
FI (1) FI884142A (fi)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI94559C (fi) * 1992-07-30 1995-09-25 Vaisala Oy Menetelmä ja laitteisto ilmakehän näkyvyyden ja valosironnan mittaamiseksi, jossa laitteistossa lähetykselle ja vastaanotolle käytetään yhteistä optiikkaa
US5241315A (en) * 1992-08-13 1993-08-31 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Micro pulse laser radar
DE4233379C1 (de) * 1992-10-05 1994-03-31 Leica Ag Heerbrugg Verfahren und Vorrichtung zur relativen Sichtweitenbestimmung
FI98766C (fi) * 1994-01-11 1997-08-11 Vaisala Oy Laite ja menetelmä näkyvyyden ja vallitsevan sään mittaamiseksi
FR2714971B1 (fr) * 1994-01-13 1996-03-22 Sextant Avionique Capteur de mesure de la concentration en eau liquide dans un gaz en mouvement.
US5546183A (en) * 1994-10-12 1996-08-13 Northrop Grumman Corporation Lidar droplet size monitor for in-flight measurement of aircraft engine exhaust contrails, droplets and aerosols
US20020075472A1 (en) * 2000-09-22 2002-06-20 Holton Carvel E. Optical fiber ceilometer for meteorological cloud altitude sensing
CN1894593B (zh) * 2003-12-19 2010-04-28 莱卡地球系统公开股份有限公司 测量至远处和近处目标的距离的装置
WO2006049643A2 (en) * 2004-04-05 2006-05-11 U.S. Government As Represented By The Secretary Of Army Airborne visibility indicator system and method
US7274448B2 (en) * 2005-09-30 2007-09-25 Institut National D'optique Short range LIDAR apparatus having a flat spatial response
US7388662B2 (en) * 2005-09-30 2008-06-17 Institut National D'optique Real-time measuring of the spatial distribution of sprayed aerosol particles
WO2007036010A1 (en) * 2005-09-30 2007-04-05 Institut National D'optique Short range lidar apparatus having a flat spatial response
CA2742687C (en) * 2008-11-05 2013-07-30 Neptec Design Group Ltd. Return pulse shape analysis for falling edge object discrimination of aerosol lidar
JP5608025B2 (ja) * 2010-09-22 2014-10-15 紀男 伊吹 ガス濃度測定方法及びガス濃度測定装置
WO2016030951A1 (ja) * 2014-08-25 2016-03-03 三菱電機株式会社 自動観測装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519354A (en) * 1965-06-17 1970-07-07 Sperry Rand Corp System for measuring extinction coefficients in the atmosphere utilizing backscattered signals
US3788742A (en) * 1971-06-24 1974-01-29 Westinghouse Electric Corp Gas monitoring system
CH544948A (fr) * 1972-03-06 1974-01-15 Schick & Cie Détecteur de brouillard ou de pluie et utilisation de ce détecteur
US3782824A (en) * 1972-06-01 1974-01-01 Sperry Rand Corp Apparatus and method for measuring extinction coefficient of an atmospheric scattering medium
US3940608A (en) * 1974-02-04 1976-02-24 Mechanical Technology Incorporated Fiber optic displacement measuring apparatus
US4099875A (en) * 1977-02-07 1978-07-11 Sperry Rand Corporation Coaxial multi-detector system and method for measuring the extinction coefficient of an atmospheric scattering medium
US4154529A (en) * 1977-03-21 1979-05-15 Andrew Corporation System for detecting reflected laser beams
DE3226372A1 (de) * 1982-07-14 1984-01-19 Compur-Electronic GmbH, 8000 München Verfahren und vorrichtung zum messen von remissionen
FR2538125A1 (fr) * 1982-12-20 1984-06-22 Enertec Telemetre de nuages
FR2548796B1 (fr) * 1983-07-08 1985-11-22 Comp Generale Electricite Dispositif optique pour determiner la position et la forme de la surface d'un objet
GB8415128D0 (en) * 1984-06-14 1984-07-18 Chaimowicz J C A Optical displacement sensors
DE3536659A1 (de) * 1984-12-27 1986-07-03 Impulsphysik Gmbh, 2000 Hamburg Vorrichtung zur wolkenhoehenmessung
FR2594535B1 (fr) * 1986-02-18 1991-05-31 Renault Dispositif de telemetrie optique
SE465337B (sv) * 1988-02-22 1991-08-26 Btg Inc Foerfarande och anordning foer koncentrationsmaetning av i en fluid suspenderade partiklar

Also Published As

Publication number Publication date
AU4122989A (en) 1990-03-15
US5116124A (en) 1992-05-26
JPH02186239A (ja) 1990-07-20
FI884142A0 (fi) 1988-09-08
EP0358507A3 (en) 1990-05-23
EP0358507A2 (en) 1990-03-14
AU623430B2 (en) 1992-05-14

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Legal Events

Date Code Title Description
FD Application lapsed
MM Patent lapsed

Owner name: VAISALA OY