DE3018021A1 - Optischer rauchdetektor - Google Patents

Optischer rauchdetektor

Info

Publication number
DE3018021A1
DE3018021A1 DE3018021A DE3018021A DE3018021A1 DE 3018021 A1 DE3018021 A1 DE 3018021A1 DE 3018021 A DE3018021 A DE 3018021A DE 3018021 A DE3018021 A DE 3018021A DE 3018021 A1 DE3018021 A1 DE 3018021A1
Authority
DE
Germany
Prior art keywords
radiation
smoke
detector
radiation source
smoke detector
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.)
Granted
Application number
DE3018021A
Other languages
German (de)
English (en)
Other versions
DE3018021C2 (enExample
Inventor
John A Forss
Tzuo-Chang Lee
Richard G Schulze
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.)
Honeywell Inc
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 DE3018021A1 publication Critical patent/DE3018021A1/de
Application granted granted Critical
Publication of DE3018021C2 publication Critical patent/DE3018021C2/de
Granted legal-status Critical Current

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

  • 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)
  • Fire-Detection Mechanisms (AREA)
DE3018021A 1979-05-16 1980-05-10 Optischer rauchdetektor Granted DE3018021A1 (de)

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 (2)

Publication Number Publication Date
DE3018021A1 true DE3018021A1 (de) 1980-11-27
DE3018021C2 DE3018021C2 (enExample) 1989-04-20

Family

ID=26716158

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3018021A Granted DE3018021A1 (de) 1979-05-16 1980-05-10 Optischer rauchdetektor

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)

Citations (6)

* 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
DE913590C (de) * 1949-08-22 1954-06-14 Dr Hans Hermann Loeschcke Verfahren zur Bestimmung der Anzahl von in einem Medium schwebenden Teilchen und Messgeraet zur Durchfuehrung dieses Verfahrens
DE1964578A1 (de) * 1968-12-23 1970-07-16 Gam Rad Truebungsmesser
DE2364184A1 (de) * 1972-12-28 1974-07-18 Japan Soc Promotion Mach Ind Verfahren und vorrichtung zur messung des truebungsgrads von fluiden
DE2709866A1 (de) * 1976-03-18 1977-09-29 Cerberus Ag Vorrichtung zur feststellung von schwebeteilchen
US4121110A (en) * 1976-11-04 1978-10-17 Solomon Elias E Optically biased smoke detector

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US3713743A (en) * 1970-11-25 1973-01-30 Agricultural Control Syst Forward scatter optical turbidimeter apparatus
JPS5855446B2 (ja) * 1975-07-15 1983-12-09 松下電工株式会社 散乱光式煙感知器

Patent Citations (6)

* 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
DE913590C (de) * 1949-08-22 1954-06-14 Dr Hans Hermann Loeschcke Verfahren zur Bestimmung der Anzahl von in einem Medium schwebenden Teilchen und Messgeraet zur Durchfuehrung dieses Verfahrens
DE1964578A1 (de) * 1968-12-23 1970-07-16 Gam Rad Truebungsmesser
DE2364184A1 (de) * 1972-12-28 1974-07-18 Japan Soc Promotion Mach Ind Verfahren und vorrichtung zur messung des truebungsgrads von fluiden
DE2709866A1 (de) * 1976-03-18 1977-09-29 Cerberus Ag Vorrichtung zur feststellung von schwebeteilchen
US4121110A (en) * 1976-11-04 1978-10-17 Solomon Elias E Optically biased smoke detector

Also Published As

Publication number Publication date
IT8048651A0 (it) 1980-05-12
FR2456529A1 (fr) 1980-12-12
IT1143096B (it) 1986-10-22
SE8003547L (sv) 1980-11-17
DE3018021C2 (enExample) 1989-04-20
CH651410A5 (en) 1985-09-13

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee