FR2745915B1 - Dispositif detecteur de brouillard - Google Patents
Dispositif detecteur de brouillardInfo
- 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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020181739A1 (en) * | 2001-06-04 | 2002-12-05 | Massachusetts Institute Of Technology | Video system for monitoring and reporting weather conditions |
ATE349691T1 (de) * | 2004-05-10 | 2007-01-15 | Fiat Ricerche | 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)
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 |
-
1996
- 1996-03-07 FR FR9602873A patent/FR2745915B1/fr not_active Expired - Fee Related
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 |