DE3160459D1 - Method and device for evaluating visibility - Google Patents

Method and device for evaluating visibility

Info

Publication number
DE3160459D1
DE3160459D1 DE8181400402T DE3160459T DE3160459D1 DE 3160459 D1 DE3160459 D1 DE 3160459D1 DE 8181400402 T DE8181400402 T DE 8181400402T DE 3160459 T DE3160459 T DE 3160459T DE 3160459 D1 DE3160459 D1 DE 3160459D1
Authority
DE
Germany
Prior art keywords
evaluating visibility
visibility
evaluating
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
Application number
DE8181400402T
Other languages
German (de)
English (en)
Inventor
Pierre Jappe
Jean Tourret
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.)
Sfab Financiere Des Activites Bourdon Ste
Original Assignee
Enertec SA
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 Enertec SA filed Critical Enertec SA
Application granted granted Critical
Publication of DE3160459D1 publication Critical patent/DE3160459D1/de
Expired 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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
DE8181400402T 1980-03-18 1981-03-17 Method and device for evaluating visibility Expired DE3160459D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8005978A FR2478815A1 (fr) 1980-03-18 1980-03-18 Procede et appareil d'evaluation de la visibilite

Publications (1)

Publication Number Publication Date
DE3160459D1 true DE3160459D1 (en) 1983-07-28

Family

ID=9239773

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181400402T Expired DE3160459D1 (en) 1980-03-18 1981-03-17 Method and device for evaluating visibility

Country Status (3)

Country Link
EP (1) EP0036370B1 (https=)
DE (1) DE3160459D1 (https=)
FR (1) FR2478815A1 (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3957639B2 (ja) * 2003-01-10 2007-08-15 株式会社堀場製作所 オイルミスト検出装置
DE502005006021D1 (de) 2005-12-13 2009-01-02 Sick Maihak Gmbh Streulicht-Sichtweitenmessgerät
CN103674905A (zh) * 2013-12-09 2014-03-26 西南技术物理研究所 双端单基线透射式能见度仪
CN111301410B (zh) * 2020-02-24 2022-01-28 新石器慧通（北京）科技有限公司 自动驾驶车辆及其车速调节方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL285477A (https=) * 1961-11-14
FR1339806A (fr) * 1961-11-14 1963-10-11 Licentia Gmbh Instrument pour la mesure et l'enregistrement de la portée de visibilité normale atmosphérique
US3541336A (en) * 1967-11-08 1970-11-17 Harry Einstein Photoelectric gas monitor having either reflective or absorbing plate at one end of sample tube

Also Published As

Publication number Publication date
EP0036370A1 (fr) 1981-09-23
FR2478815B1 (https=) 1983-08-26
EP0036370B1 (fr) 1983-06-22
FR2478815A1 (fr) 1981-09-25

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: S.F.A.B. SOCIETE FINANCIERE DES ACTIVITES BOURDON,

8328 Change in the person/name/address of the agent

Free format text: PRINZ, E., DIPL.-ING. LEISER, G., DIPL.-ING. SCHWEPFINGER, K., DIPL.-ING. BUNKE, H., DIPL.-CHEM. DR.RER.NAT. DEGWERT, H., DIPL.-PHYS., PAT.-ANWAELTE, 8000 MUENCHEN

8339 Ceased/non-payment of the annual fee