FR2619919B1 - Dispositif de mesure de visibilite dans un milieu turbide - Google Patents

Dispositif de mesure de visibilite dans un milieu turbide

Info

Publication number
FR2619919B1
FR2619919B1 FR8712149A FR8712149A FR2619919B1 FR 2619919 B1 FR2619919 B1 FR 2619919B1 FR 8712149 A FR8712149 A FR 8712149A FR 8712149 A FR8712149 A FR 8712149A FR 2619919 B1 FR2619919 B1 FR 2619919B1
Authority
FR
France
Prior art keywords
turbid medium
measuring visibility
visibility
measuring
turbid
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 - Lifetime
Application number
FR8712149A
Other languages
English (en)
Other versions
FR2619919A1 (fr
Inventor
Charles Rydel
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.)
Jaeger SA
Original Assignee
Jaeger 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 Jaeger SA filed Critical Jaeger SA
Priority to FR8712149A priority Critical patent/FR2619919B1/fr
Publication of FR2619919A1 publication Critical patent/FR2619919A1/fr
Application granted granted Critical
Publication of FR2619919B1 publication Critical patent/FR2619919B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G01N2201/06—Illumination; Optics
    • G01N2201/062—LED's
    • G01N2201/0621—Supply

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)
FR8712149A 1987-09-01 1987-09-01 Dispositif de mesure de visibilite dans un milieu turbide Expired - Lifetime FR2619919B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8712149A FR2619919B1 (fr) 1987-09-01 1987-09-01 Dispositif de mesure de visibilite dans un milieu turbide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8712149A FR2619919B1 (fr) 1987-09-01 1987-09-01 Dispositif de mesure de visibilite dans un milieu turbide

Publications (2)

Publication Number Publication Date
FR2619919A1 FR2619919A1 (fr) 1989-03-03
FR2619919B1 true FR2619919B1 (fr) 1990-01-19

Family

ID=9354541

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8712149A Expired - Lifetime FR2619919B1 (fr) 1987-09-01 1987-09-01 Dispositif de mesure de visibilite dans un milieu turbide

Country Status (1)

Country Link
FR (1) FR2619919B1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1573207A1 (de) * 1965-09-30 1970-05-21 Hoffman Electronics Corp Rueckstreunebelmessgeraet
SE369964B (fr) * 1973-01-18 1974-09-23 Satt Elektronik Ab
US3917956A (en) * 1974-03-08 1975-11-04 Pyrotector Inc Smoke detector
US4225791A (en) * 1979-03-01 1980-09-30 Honeywell Inc. Optical smoke detector circuit
US4249169A (en) * 1979-05-18 1981-02-03 Malinowski William J Optical smoke detector

Also Published As

Publication number Publication date
FR2619919A1 (fr) 1989-03-03

Similar Documents

Publication Publication Date Title
FR2646933B1 (fr) Dispositif de mesure de distance
DE3688380D1 (de) Verfahren zur messung des lichtabsorptionsvermoegens eines fluessigkeitsmediums.
FR2640040B1 (fr) Procede et dispositif de mesure optique
FR2597598B1 (fr) Dispositif de mesure de forces
FR2631120B1 (fr) Dispositif de mesure a capacite variable
FR2641861B1 (fr) Dispositif de mesure opto-electronique
FR2547861B1 (fr) Methode et dispositif de mesure et d'intervention dans un puits
DE69124648T2 (de) Flüssigkeitsstands-Messsystem
FR2576413B1 (fr) Dispositif pour la mesure de pressions dans des systemes rotatifs
FR2513553B1 (fr) Dispositif de pompage et de mesure
FR2554600B1 (fr) Dispositif de mesure pour profil sismique dans un puits de forage
EP0447728A3 (en) Optical device for liquid level measurement in a reservoir, using a reflective prism
FR2634285B1 (fr) Procede et dispositif de mesure de signaux electro-optiques
FR2628536B1 (fr) Dispositif de mesure d'un rayonnement de faible valeur
FR2636436B1 (fr) Procede et dispositif de mesure de subsidence
IT1228047B (it) Dispositivo indicatore elettroottico
FR2619919B1 (fr) Dispositif de mesure de visibilite dans un milieu turbide
FR2522136B3 (fr) Dispositif de mesure de la position des roues
FR2561395B1 (fr) Dispositif de mesure en forage
FR2613849B1 (fr) Dispositif de mesure du temps
DE3310704C2 (de) Flüssigkeitsstandmesseinrichtung
FR2631111B1 (fr) Dispositif telescopique de mesure lineaire
FR2617606B1 (fr) Dispositif de mesure pour jets de fluide
FR2644577B1 (fr) Dispositif de mesure
FR2586291B1 (fr) Systeme de mesure des niveaux de fluides contenus dans un reservoir

Legal Events

Date Code Title Description
ST Notification of lapse