AT375777B - METHOD AND ARRANGEMENT FOR DETECTING Hovering Particles - Google Patents

METHOD AND ARRANGEMENT FOR DETECTING Hovering Particles

Info

Publication number
AT375777B
AT375777B AT0546878A AT546878A AT375777B AT 375777 B AT375777 B AT 375777B AT 0546878 A AT0546878 A AT 0546878A AT 546878 A AT546878 A AT 546878A AT 375777 B AT375777 B AT 375777B
Authority
AT
Austria
Prior art keywords
arrangement
detecting hovering
particles
hovering particles
detecting
Prior art date
Application number
AT0546878A
Other languages
German (de)
Other versions
ATA546878A (en
Original Assignee
Heimann Gmbh
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 Heimann Gmbh filed Critical Heimann Gmbh
Publication of ATA546878A publication Critical patent/ATA546878A/en
Application granted granted Critical
Publication of AT375777B publication Critical patent/AT375777B/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
    • G08B17/11—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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Measurement Of Radiation (AREA)
AT0546878A 1977-07-29 1978-07-27 METHOD AND ARRANGEMENT FOR DETECTING Hovering Particles AT375777B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2734347A DE2734347B2 (en) 1977-07-29 1977-07-29 Arrangement for the detection of suspended particles

Publications (2)

Publication Number Publication Date
ATA546878A ATA546878A (en) 1984-01-15
AT375777B true AT375777B (en) 1984-09-10

Family

ID=6015204

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0546878A AT375777B (en) 1977-07-29 1978-07-27 METHOD AND ARRANGEMENT FOR DETECTING Hovering Particles

Country Status (8)

Country Link
AT (1) AT375777B (en)
BE (1) BE869380A (en)
BR (1) BR7804881A (en)
CH (1) CH624767A5 (en)
DE (1) DE2734347B2 (en)
IT (1) IT1097182B (en)
NL (1) NL7807117A (en)
SE (1) SE430828B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4028188A1 (en) * 1990-09-05 1992-03-12 Esser Sicherheitstechnik FIRE DETECTORS WITH A SPARKLIGHT AND IONIZATION SYSTEM
US5633501A (en) * 1995-06-07 1997-05-27 Pittway Corporation Combination photoelectric and ionization smoke detector

Also Published As

Publication number Publication date
NL7807117A (en) 1979-01-31
DE2734347B2 (en) 1979-12-06
CH624767A5 (en) 1981-08-14
ATA546878A (en) 1984-01-15
IT7825764A0 (en) 1978-07-17
SE7808218L (en) 1979-01-30
IT1097182B (en) 1985-08-26
BE869380A (en) 1978-11-16
BR7804881A (en) 1979-04-17
SE430828B (en) 1983-12-12
DE2734347A1 (en) 1979-02-01

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee