AU3100277A - Optical smoke detector - Google Patents

Optical smoke detector

Info

Publication number
AU3100277A
AU3100277A AU31002/77A AU3100277A AU3100277A AU 3100277 A AU3100277 A AU 3100277A AU 31002/77 A AU31002/77 A AU 31002/77A AU 3100277 A AU3100277 A AU 3100277A AU 3100277 A AU3100277 A AU 3100277A
Authority
AU
Australia
Prior art keywords
smoke detector
optical smoke
optical
detector
smoke
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.)
Pending
Application number
AU31002/77A
Inventor
Lawrence Richard Snowman
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of AU3100277A publication Critical patent/AU3100277A/en
Pending 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
    • 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
    • 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
    • G08B17/11—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

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
AU31002/77A 1977-01-07 1977-11-28 Optical smoke detector Pending AU3100277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75760577A 1977-01-07 1977-01-07

Publications (1)

Publication Number Publication Date
AU3100277A true AU3100277A (en) 1979-06-07

Family

ID=25048493

Family Applications (1)

Application Number Title Priority Date Filing Date
AU31002/77A Pending AU3100277A (en) 1977-01-07 1977-11-28 Optical smoke detector

Country Status (6)

Country Link
JP (1) JPS53106081A (en)
AU (1) AU3100277A (en)
BE (1) BE862626A (en)
DE (1) DE2758517A1 (en)
FR (1) FR2377033A1 (en)
NL (1) NL7800184A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6153550A (en) * 1984-08-23 1986-03-17 Nohmi Bosai Kogyo Co Ltd Photoelectric smoke sensor
DE3580817D1 (en) * 1984-08-23 1991-01-17 Nohmi Bosai Kogyo Co Ltd PHOTOELECTRIC SMOKE DETECTOR.
JP2536901B2 (en) * 1988-06-27 1996-09-25 日本テクトロン株式会社 Fluorescence measurement device
CN1123770C (en) * 1997-05-29 2003-10-08 报知机株式会社 Light projection device for photoelectric smoke sensor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364030A (en) * 1964-04-29 1968-01-16 Du Pont Leuco dye-diacylazino light-sensitive dye former compositions

Also Published As

Publication number Publication date
BE862626A (en) 1978-05-02
DE2758517A1 (en) 1978-07-13
NL7800184A (en) 1978-07-11
FR2377033A1 (en) 1978-08-04
JPS53106081A (en) 1978-09-14

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