FR2173148B1 - - Google Patents

Info

Publication number
FR2173148B1
FR2173148B1 FR7306209A FR7306209A FR2173148B1 FR 2173148 B1 FR2173148 B1 FR 2173148B1 FR 7306209 A FR7306209 A FR 7306209A FR 7306209 A FR7306209 A FR 7306209A FR 2173148 B1 FR2173148 B1 FR 2173148B1
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.)
Expired
Application number
FR7306209A
Other versions
FR2173148A1 (fr
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2173148A1 publication Critical patent/FR2173148A1/fr
Application granted granted Critical
Publication of FR2173148B1 publication Critical patent/FR2173148B1/fr
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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01W—METEOROLOGY
    • G01W1/00—Meteorology
    • G01W1/14—Rainfall or precipitation gauges

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental Sciences (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
FR7306209A 1972-02-25 1973-02-22 Expired FR2173148B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2208904A DE2208904C3 (de) 1972-02-25 1972-02-25 Gerät zur Messung von Sichtwetten

Publications (2)

Publication Number Publication Date
FR2173148A1 FR2173148A1 (fr) 1973-10-05
FR2173148B1 true FR2173148B1 (fr) 1983-09-23

Family

ID=5837054

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7306209A Expired FR2173148B1 (fr) 1972-02-25 1973-02-22

Country Status (5)

Country Link
US (1) US3817623A (fr)
CA (1) CA969775A (fr)
DE (1) DE2208904C3 (fr)
FR (1) FR2173148B1 (fr)
GB (1) GB1400311A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900396A (en) * 1974-03-22 1975-08-19 Baxter Laboratories Inc Blood leak detector
JPS5166891A (ja) * 1974-12-06 1976-06-09 Nippon Steel Corp Renzokushikibiryoyunodosokuteisochi
CH639770A5 (de) * 1979-10-02 1983-11-30 Fruengel Frank Sichtweitenmessgeraet.
CH639769A5 (de) * 1979-10-02 1983-11-30 Fruengel Frank Sichtweitenmessgeraet nach dem prinzip der vorwaertsstreuung und dessen verwendung.
DE3026256A1 (de) * 1980-07-11 1982-02-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Sensor fuer reifansatz
US4432645A (en) * 1980-10-10 1984-02-21 Fruengel Frank Forward-scatter visibility meter
DE3248243A1 (de) * 1982-12-28 1984-06-28 Bernd Dipl.-Ing. 6000 Frankfurt Ambrosius Vorrichtung zur truebungsmessung von fluessigkeiten, insbesondere zur bestimmung des schlammspiegels in absetzbecken von klaeranlagen
DE3507147A1 (de) * 1985-02-28 1986-09-04 Dr. Bruno Lange Gmbh, 1000 Berlin Verfahren und vorrichtung zum messen der sichttiefe waessriger loesungen
GB2259761B (en) * 1991-09-18 1995-04-05 Graviner Ltd Kidde Smoke and particle detector
US20230051410A1 (en) * 2021-08-10 2023-02-16 Arm Limited Circuitry and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1206169B (de) * 1961-05-16 1965-12-02 Fruengel Frank Dr Ing Verfahren zur Sichtweitenmessung unter Einwirkung vollen Tageslichtes
SE358478B (fr) * 1970-11-16 1973-07-30 Asea Ab

Also Published As

Publication number Publication date
FR2173148A1 (fr) 1973-10-05
DE2208904A1 (de) 1973-08-30
GB1400311A (en) 1975-07-16
US3817623A (en) 1974-06-18
DE2208904C3 (de) 1975-11-06
DE2208904B2 (de) 1975-03-27
CA969775A (en) 1975-06-24

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Legal Events

Date Code Title Description
ST Notification of lapse
AR Application made for restoration
BR Restoration of rights
TP Transmission of property
ST Notification of lapse