CH564238A5 - - Google Patents

Info

Publication number
CH564238A5
CH564238A5 CH822173A CH822173A CH564238A5 CH 564238 A5 CH564238 A5 CH 564238A5 CH 822173 A CH822173 A CH 822173A CH 822173 A CH822173 A CH 822173A CH 564238 A5 CH564238 A5 CH 564238A5
Authority
CH
Switzerland
Application number
CH822173A
Original Assignee
Commw Scient Ind Res Org
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 Commw Scient Ind Res Org filed Critical Commw Scient Ind Res Org
Publication of CH564238A5 publication Critical patent/CH564238A5/xx

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
    • 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
    • G08B17/107—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 for detecting light-scattering due to smoke
    • 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)
  • Fire-Detection Mechanisms (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
CH822173A 1972-06-06 1973-06-06 CH564238A5 (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPA923072 1972-06-06

Publications (1)

Publication Number Publication Date
CH564238A5 true CH564238A5 (cs) 1975-07-15

Family

ID=3765103

Family Applications (1)

Application Number Title Priority Date Filing Date
CH822173A CH564238A5 (cs) 1972-06-06 1973-06-06

Country Status (4)

Country Link
US (1) US3874795A (cs)
JP (1) JPS4952677A (cs)
CH (1) CH564238A5 (cs)
GB (1) GB1419146A (cs)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4125779A (en) * 1977-07-13 1978-11-14 Chloride, Incorporated Smoke detector
US4155653A (en) * 1977-10-14 1979-05-22 The United States Of America As Represented By The Secretary Of The Navy Smoke-measuring transducer
CA1277005C (en) * 1983-10-21 1990-11-27 Martin T. Cole Smoke detection apparatus
JPS61122553A (ja) * 1984-11-20 1986-06-10 Shimizu Constr Co Ltd クリ−ンル−ム用煙感知器
US5440145A (en) * 1991-10-14 1995-08-08 I.E.I. Pty. Ltd. Sampling chamber for a pollution detector
US7564365B2 (en) * 2002-08-23 2009-07-21 Ge Security, Inc. Smoke detector and method of detecting smoke
US9805570B2 (en) * 2011-06-22 2017-10-31 Garrett Thermal Systems Limited Particle detector with dust rejection
US9140646B2 (en) 2012-04-29 2015-09-22 Valor Fire Safety, Llc Smoke detector with external sampling volume using two different wavelengths and ambient light detection for measurement correction
US8947244B2 (en) 2012-04-29 2015-02-03 Valor Fire Safety, Llc Smoke detector utilizing broadband light, external sampling volume, and internally reflected light
US8907802B2 (en) 2012-04-29 2014-12-09 Valor Fire Safety, Llc Smoke detector with external sampling volume and ambient light rejection
JP6407295B2 (ja) 2013-10-30 2018-10-17 ヴァラー ファイヤー セーフティー， エルエルシー 外部サンプリング体積および周囲光拒絶を有する煙検出器
GB2531495B (en) * 2014-06-16 2017-04-12 Apollo Fire Detectors Ltd Smoke detector
EP4300457A3 (en) 2016-11-11 2024-03-13 Carrier Corporation High sensitivity fiber optic based detection
US11151853B2 (en) 2016-11-11 2021-10-19 Carrier Corporation High sensitivity fiber optic based detection
CA3043500A1 (en) 2016-11-11 2018-05-17 Carrier Corporation High sensitivity fiber optic based detection
EP3539108B1 (en) 2016-11-11 2020-08-12 Carrier Corporation High sensitivity fiber optic based detection
CA3043583A1 (en) 2016-11-11 2018-05-17 Carrier Corporation High sensitivity fiber optic based detection
RU179257U1 (ru) * 2017-07-03 2018-05-07 федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский национальный исследовательский университет информационных технологий, механики и оптики" (Университет ИТМО) Оптический датчик дыма

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB918525A (en) * 1958-04-29 1963-02-13 Hartridge Ltd Leslie Improvements in and relating to smokemeters
US3231748A (en) * 1961-10-30 1966-01-25 Fyr Fyter Co Smoke detector
US3313946A (en) * 1962-11-30 1967-04-11 Goodwin Smoke, flame, critical temperature and rate of temperature rise detector
US3563661A (en) * 1969-08-29 1971-02-16 Battelle Development Corp Integrating nephelometer

Also Published As

Publication number Publication date
US3874795A (en) 1975-04-01
GB1419146A (en) 1975-12-24
JPS4952677A (cs) 1974-05-22

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Legal Events

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