CH651410A5 - Optical smoke detector - Google Patents

Optical smoke detector Download PDF

Info

Publication number
CH651410A5
CH651410A5 CH3712/80A CH371280A CH651410A5 CH 651410 A5 CH651410 A5 CH 651410A5 CH 3712/80 A CH3712/80 A CH 3712/80A CH 371280 A CH371280 A CH 371280A CH 651410 A5 CH651410 A5 CH 651410A5
Authority
CH
Switzerland
Prior art keywords
radiation
detector
smoke
light
reflector
Prior art date
Application number
CH3712/80A
Other languages
German (de)
English (en)
Inventor
John A Forss
Tzuo-Chang Lee
Richard G Schulze
Original Assignee
Honeywell Inc
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
Priority claimed from US06/039,467 external-priority patent/US4230950A/en
Priority claimed from US06/045,025 external-priority patent/US4221485A/en
Application filed by Honeywell Inc filed Critical Honeywell Inc
Publication of CH651410A5 publication Critical patent/CH651410A5/de

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 SYSTEMS, e.g. PERSONAL 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 SYSTEMS, e.g. PERSONAL 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)
CH3712/80A 1979-05-16 1980-05-12 Optical smoke detector CH651410A5 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/039,467 US4230950A (en) 1979-05-16 1979-05-16 Electro-optic smoke detector
US06/045,025 US4221485A (en) 1979-06-04 1979-06-04 Optical smoke detector

Publications (1)

Publication Number Publication Date
CH651410A5 true CH651410A5 (en) 1985-09-13

Family

ID=26716158

Family Applications (1)

Application Number Title Priority Date Filing Date
CH3712/80A CH651410A5 (en) 1979-05-16 1980-05-12 Optical smoke detector

Country Status (5)

Country Link
CH (1) CH651410A5 (enExample)
DE (1) DE3018021A1 (enExample)
FR (1) FR2456529A1 (enExample)
IT (1) IT1143096B (enExample)
SE (1) SE8003547L (enExample)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE682869C (de) * 1929-02-24 1939-10-23 Zeiss Carl Fa Vorrichtung zum Messen des Truebungsgrades von Fluessigkeiten
DE881877C (de) * 1949-08-22 1953-07-02 Hans H Dr Loeschcke Verfahren zur Zaehlung von in einem lichtdurchlaessigen Medium schwebenden Teilchen und Messgeraet zur Durchfuehrung des Verfahrens
NL132814C (enExample) * 1963-07-24
CH417405A (de) * 1964-07-14 1966-07-15 Cerberus Ag Werk Fuer Elektron Vorrichtung zur Feststellung von Aerosolen in Luft
US3524707A (en) * 1967-08-14 1970-08-18 Julian E Hansen Sr Pulsating light source smoke detector
GB1285977A (en) * 1968-12-23 1972-08-16 Gam Rad Improved turbidimeter
US3713743A (en) * 1970-11-25 1973-01-30 Agricultural Control Syst Forward scatter optical turbidimeter apparatus
JPS5431833B2 (enExample) * 1972-12-28 1979-10-09
JPS5855446B2 (ja) * 1975-07-15 1983-12-09 松下電工株式会社 散乱光式煙感知器
CH595113A5 (enExample) * 1976-03-18 1978-01-31 Cerberus Ag
US4121110A (en) * 1976-11-04 1978-10-17 Solomon Elias E Optically biased smoke detector

Also Published As

Publication number Publication date
DE3018021A1 (de) 1980-11-27
SE8003547L (sv) 1980-11-17
IT1143096B (it) 1986-10-22
IT8048651A0 (it) 1980-05-12
DE3018021C2 (enExample) 1989-04-20
FR2456529A1 (fr) 1980-12-12

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Legal Events

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PL Patent ceased