BE761610A - SMOKE DETECTOR - Google Patents

SMOKE DETECTOR

Info

Publication number
BE761610A
BE761610A BE761610A BE761610A BE761610A BE 761610 A BE761610 A BE 761610A BE 761610 A BE761610 A BE 761610A BE 761610 A BE761610 A BE 761610A BE 761610 A BE761610 A BE 761610A
Authority
BE
Belgium
Prior art keywords
smoke detector
smoke
detector
Prior art date
Application number
BE761610A
Other languages
French (fr)
Inventor
H Weber
Original Assignee
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 Euratom filed Critical Euratom
Publication of BE761610A publication Critical patent/BE761610A/en

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
BE761610A 1970-02-09 1971-01-15 SMOKE DETECTOR BE761610A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702006371 DE2006371A1 (en) 1970-02-09 1970-02-09 Smoke detector

Publications (1)

Publication Number Publication Date
BE761610A true BE761610A (en) 1971-06-16

Family

ID=5762079

Family Applications (1)

Application Number Title Priority Date Filing Date
BE761610A BE761610A (en) 1970-02-09 1971-01-15 SMOKE DETECTOR

Country Status (6)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3714926B2 (en) 2002-08-22 2005-11-09 ホーチキ株式会社 Sampling tube smoke detector
US8289177B2 (en) * 2009-06-29 2012-10-16 Honeywell International Inc. Circuitry to monitor and control source of radiant energy in smoke detector
EP2595126B1 (en) * 2011-11-15 2019-03-06 Siemens Schweiz AG Alarm for use in the nuclear field with a heating system for heating semiconductor elements that are not typically radiation resistant to improve functional service life
US20130126508A1 (en) * 2011-11-17 2013-05-23 Texas Instruments Incorporated Extending Radiation Tolerance By Localized Temperature Annealing Of Semiconductor Devices
ES2841315T3 (en) * 2018-07-17 2021-07-08 Schuetz Gmbh Messtechnik Mobile and portable gas sensing device, gas measurement procedure and use of gas sensing device

Also Published As

Publication number Publication date
NL7100638A (en) 1971-08-11
FR2078384A5 (en) 1971-11-05
GB1321016A (en) 1973-06-20
DE2006371A1 (en) 1971-08-19
LU62557A1 (en) 1971-08-19

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