CH624767A5 - Arrangement for detecting suspended particles - Google Patents

Arrangement for detecting suspended particles Download PDF

Info

Publication number
CH624767A5
CH624767A5 CH1563277A CH1563277A CH624767A5 CH 624767 A5 CH624767 A5 CH 624767A5 CH 1563277 A CH1563277 A CH 1563277A CH 1563277 A CH1563277 A CH 1563277A CH 624767 A5 CH624767 A5 CH 624767A5
Authority
CH
Switzerland
Prior art keywords
suspended particles
particles
output signal
chamber
radiation
Prior art date
Application number
CH1563277A
Other languages
German (de)
English (en)
Inventor
Werner Dr Rech
Walter 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 CH624767A5 publication Critical patent/CH624767A5/de

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)
CH1563277A 1977-07-29 1977-12-20 Arrangement for detecting suspended particles CH624767A5 (en)

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 (1)

Publication Number Publication Date
CH624767A5 true CH624767A5 (en) 1981-08-14

Family

ID=6015204

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1563277A CH624767A5 (en) 1977-07-29 1977-12-20 Arrangement for detecting suspended particles

Country Status (8)

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

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
NL7807117A (nl) 1979-01-31
DE2734347B2 (de) 1979-12-06
ATA546878A (de) 1984-01-15
IT7825764A0 (it) 1978-07-17
SE7808218L (sv) 1979-01-30
IT1097182B (it) 1985-08-26
AT375777B (de) 1984-09-10
BE869380A (fr) 1978-11-16
BR7804881A (pt) 1979-04-17
SE430828B (sv) 1983-12-12
DE2734347A1 (de) 1979-02-01

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Legal Events

Date Code Title Description
PL Patent ceased