SE430828B - Anordning for att pavisa svevande partiklar - Google Patents

Anordning for att pavisa svevande partiklar

Info

Publication number
SE430828B
SE430828B SE7808218A SE7808218A SE430828B SE 430828 B SE430828 B SE 430828B SE 7808218 A SE7808218 A SE 7808218A SE 7808218 A SE7808218 A SE 7808218A SE 430828 B SE430828 B SE 430828B
Authority
SE
Sweden
Prior art keywords
particles
chamber
ionization
radiation
output signal
Prior art date
Application number
SE7808218A
Other languages
English (en)
Swedish (sv)
Other versions
SE7808218L (sv
Inventor
W Rech
W Glockmann
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 SE7808218L publication Critical patent/SE7808218L/xx
Publication of SE430828B publication Critical patent/SE430828B/sv

Links

Classifications

    • 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
    • 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

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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Measurement Of Radiation (AREA)
SE7808218A 1977-07-29 1978-07-28 Anordning for att pavisa svevande partiklar SE430828B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2734347A DE2734347B2 (de) 1977-07-29 1977-07-29 Anordnung zum Nachweis von Schwebeteilchen

Publications (2)

Publication Number Publication Date
SE7808218L SE7808218L (sv) 1979-01-30
SE430828B true SE430828B (sv) 1983-12-12

Family

ID=6015204

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7808218A SE430828B (sv) 1977-07-29 1978-07-28 Anordning for att pavisa svevande partiklar

Country Status (8)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4028188A1 (de) * 1990-09-05 1992-03-12 Esser Sicherheitstechnik Brandmelder mit einem streulicht- und einem ionisationssystem
US5633501A (en) * 1995-06-07 1997-05-27 Pittway Corporation Combination photoelectric and ionization smoke detector

Also Published As

Publication number Publication date
IT7825764A0 (it) 1978-07-17
ATA546878A (de) 1984-01-15
DE2734347B2 (de) 1979-12-06
SE7808218L (sv) 1979-01-30
DE2734347A1 (de) 1979-02-01
AT375777B (de) 1984-09-10
BR7804881A (pt) 1979-04-17
CH624767A5 (en) 1981-08-14
BE869380A (fr) 1978-11-16
IT1097182B (it) 1985-08-26
NL7807117A (nl) 1979-01-31

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