FR2018088A1 - - Google Patents

Info

Publication number
FR2018088A1
FR2018088A1 FR6931244A FR6931244A FR2018088A1 FR 2018088 A1 FR2018088 A1 FR 2018088A1 FR 6931244 A FR6931244 A FR 6931244A FR 6931244 A FR6931244 A FR 6931244A FR 2018088 A1 FR2018088 A1 FR 2018088A1
Authority
FR
France
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.)
Withdrawn
Application number
FR6931244A
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.)
THORN ELECTRICAL COMPONE
Original Assignee
THORN ELECTRICAL COMPONE
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 THORN ELECTRICAL COMPONE filed Critical THORN ELECTRICAL COMPONE
Publication of FR2018088A1 publication Critical patent/FR2018088A1/fr
Withdrawn legal-status Critical Current

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
FR6931244A 1968-09-13 1969-09-12 Withdrawn FR2018088A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB43781/68A GB1286455A (en) 1968-09-13 1968-09-13 Measurement of visual range in fog

Publications (1)

Publication Number Publication Date
FR2018088A1 true FR2018088A1 (fr) 1970-05-29

Family

ID=10430282

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6931244A Withdrawn FR2018088A1 (fr) 1968-09-13 1969-09-12

Country Status (5)

Country Link
US (1) US3650627A (fr)
BE (1) BE738848A (fr)
DE (1) DE1946264B2 (fr)
FR (1) FR2018088A1 (fr)
GB (1) GB1286455A (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA801538B (en) * 1979-03-19 1981-04-29 United Kingdom Government Method and apparatus for estimating slant visibility in fog
US4397549A (en) * 1981-03-27 1983-08-09 The United States Of America As Represented By The Secretary Of The Army Method for removal of LIDAR background backscattering by subtraction of multiple-delayed return signal
JPH0778533B2 (ja) * 1988-05-02 1995-08-23 株式会社日立製作所 レーザレーダ
AU7747591A (en) * 1990-05-12 1991-12-10 Rediffusion Simulation Limited Image generator
DE19642967C1 (de) * 1996-10-18 1998-06-10 Deutsch Zentr Luft & Raumfahrt Verfahren zum automatischen Bestimmen der Sichtweite mit einemn LIDAR-System
AU1726800A (en) * 1998-11-12 2000-05-29 Cambridge Management Advanced Systems Corporation Method and apparatus for determining cloud cover
US6133990A (en) * 1999-01-29 2000-10-17 Cambridge Management Advanced Systems Corp. Method for determining presence and distribution of clouds
US6515737B2 (en) * 2000-01-04 2003-02-04 The Regents Of The University Of California High-resolution imaging and target designation through clouds or smoke
DE102005025183A1 (de) * 2005-06-01 2006-12-07 Sick Engineering Gmbh Partikelkonzentrations-Messvorrichtung und Justageverfahren hierfür
DE102005025181A1 (de) * 2005-06-01 2006-12-07 Sick Engineering Gmbh Partikelkonzentrations-Messvorrichtung und Messverfahren
DE102005053899A1 (de) * 2005-11-09 2007-05-10 Vaisala Gmbh Verfahren zur Bestimmung einer optimalen Landebahnbefeuerungsintensität
GB2510617B (en) * 2013-02-10 2014-12-31 Lawrence Alan Hisscott Sensor System for Assessing Visual Range on a Runway
US10991261B1 (en) * 2018-08-09 2021-04-27 Rockwell Collins, Inc. Glideslope visibility monitor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1257697A (fr) * 1960-02-22 1961-04-07 Compteurs Comp D Perfectionnements à la mesure de la densité moyenne de l'atmosphère
US3175214A (en) * 1960-03-18 1965-03-23 Lockheed Aircraft Corp Doppler-free distance measuring system
US3428814A (en) * 1965-05-26 1969-02-18 Bausch & Lomb Photoelectric system for measuring optical density
US3419333A (en) * 1965-09-01 1968-12-31 Ind Res Associates Inc Runway visual range computer system
US3316548A (en) * 1965-11-01 1967-04-25 Sperry Rand Corp Automatic radar tracking system
US3510225A (en) * 1966-05-31 1970-05-05 Stanford Research Inst Visibility indicating system

Also Published As

Publication number Publication date
DE1946264A1 (de) 1970-03-19
BE738848A (fr) 1970-02-16
GB1286455A (en) 1972-08-23
DE1946264B2 (de) 1973-05-10
US3650627A (en) 1972-03-21

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Legal Events

Date Code Title Description
ST Notification of lapse