FR2745915B1 - Dispositif detecteur de brouillard - Google Patents

Dispositif detecteur de brouillard

Info

Publication number
FR2745915B1
FR2745915B1 FR9602873A FR9602873A FR2745915B1 FR 2745915 B1 FR2745915 B1 FR 2745915B1 FR 9602873 A FR9602873 A FR 9602873A FR 9602873 A FR9602873 A FR 9602873A FR 2745915 B1 FR2745915 B1 FR 2745915B1
Authority
FR
France
Prior art keywords
fog detector
fog
detector
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
FR9602873A
Other languages
English (en)
Other versions
FR2745915A1 (fr
Inventor
Michel Petit
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.)
COM 1
Original Assignee
COM 1
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 COM 1 filed Critical COM 1
Priority to FR9602873A priority Critical patent/FR2745915B1/fr
Publication of FR2745915A1 publication Critical patent/FR2745915A1/fr
Application granted granted Critical
Publication of FR2745915B1 publication Critical patent/FR2745915B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Alarm Systems (AREA)
FR9602873A 1996-03-07 1996-03-07 Dispositif detecteur de brouillard Expired - Fee Related FR2745915B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9602873A FR2745915B1 (fr) 1996-03-07 1996-03-07 Dispositif detecteur de brouillard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9602873A FR2745915B1 (fr) 1996-03-07 1996-03-07 Dispositif detecteur de brouillard

Publications (2)

Publication Number Publication Date
FR2745915A1 FR2745915A1 (fr) 1997-09-12
FR2745915B1 true FR2745915B1 (fr) 1998-04-30

Family

ID=9489953

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9602873A Expired - Fee Related FR2745915B1 (fr) 1996-03-07 1996-03-07 Dispositif detecteur de brouillard

Country Status (1)

Country Link
FR (1) FR2745915B1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002099465A1 (fr) * 2001-06-04 2002-12-12 Massachusetts Institute Of Technology Systeme video pour surveiller et transmettre les conditions meteorologiques
DE602004003912T8 (de) * 2004-05-10 2008-01-17 CRF Società Consortile per Azioni, Orbassano Vorrichtung und Verfahren zur Messung der Sichtweite
GB0604990D0 (en) * 2006-03-11 2006-04-19 Univ Durham Optical transmissometer and light source and light detector for such optical transmissometer
IT1393319B1 (it) * 2009-03-20 2012-04-20 Setteducati Avvisatore della presenza di nebbia

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2909980B2 (ja) * 1992-10-14 1999-06-23 日本アビオニクス株式会社 霧監視システム
JPH06308256A (ja) * 1993-04-26 1994-11-04 Hitachi Cable Ltd 雲霧検出方法
JPH07260946A (ja) * 1994-03-17 1995-10-13 Yokogawa Uezatsuku Kk 視程分布計測システム

Also Published As

Publication number Publication date
FR2745915A1 (fr) 1997-09-12

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Legal Events

Date Code Title Description
ST Notification of lapse