FR2078384A5 - - Google Patents

Info

Publication number
FR2078384A5
FR2078384A5 FR7104297A FR7104297A FR2078384A5 FR 2078384 A5 FR2078384 A5 FR 2078384A5 FR 7104297 A FR7104297 A FR 7104297A FR 7104297 A FR7104297 A FR 7104297A FR 2078384 A5 FR2078384 A5 FR 2078384A5
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
FR7104297A
Other languages
French (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.)
European Atomic Energy Community Euratom
Original Assignee
European Atomic Energy Community Euratom
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 European Atomic Energy Community Euratom filed Critical European Atomic Energy Community Euratom
Application granted granted Critical
Publication of FR2078384A5 publication Critical patent/FR2078384A5/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • 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
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
FR7104297A 1970-02-09 1971-02-09 Expired FR2078384A5 (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702006371 DE2006371A1 (de) 1970-02-09 1970-02-09 Rauchdetektor

Publications (1)

Publication Number Publication Date
FR2078384A5 true FR2078384A5 (xx) 1971-11-05

Family

ID=5762079

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7104297A Expired FR2078384A5 (xx) 1970-02-09 1971-02-09

Country Status (6)

Country Link
BE (1) BE761610A (xx)
DE (1) DE2006371A1 (xx)
FR (1) FR2078384A5 (xx)
GB (1) GB1321016A (xx)
LU (1) LU62557A1 (xx)
NL (1) NL7100638A (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3714926B2 (ja) 2002-08-22 2005-11-09 ホーチキ株式会社 サンプリング管式煙検知器
US8289177B2 (en) * 2009-06-29 2012-10-16 Honeywell International Inc. Circuitry to monitor and control source of radiant energy in smoke detector
EP2595126B1 (de) * 2011-11-15 2019-03-06 Siemens Schweiz AG Gefahrenmelder zum Betrieb im Nuklearbereich, mit einer Heizung zum Beheizen typischerweise nichtstrahlungsfester Halbleiterbauelemente zur Erhöhung der funktionalen Lebensdauer
US20130126508A1 (en) * 2011-11-17 2013-05-23 Texas Instruments Incorporated Extending Radiation Tolerance By Localized Temperature Annealing Of Semiconductor Devices
EP3598106B1 (de) * 2018-07-17 2020-10-07 Schütz GmbH Messtechnik Mobile, tragbare gassensorvorrichtung, gasmessverfahren und verwendung der gassensorvorrichtung

Also Published As

Publication number Publication date
LU62557A1 (xx) 1971-08-19
DE2006371A1 (de) 1971-08-19
BE761610A (fr) 1971-06-16
GB1321016A (en) 1973-06-20
NL7100638A (xx) 1971-08-11

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Legal Events

Date Code Title Description
ST Notification of lapse