CH591257A5 - Radiation scatter smoke detector - has scatter detector receivers coaxial to radiation bundle to scan different directions using photocells or sensors - Google Patents

Radiation scatter smoke detector - has scatter detector receivers coaxial to radiation bundle to scan different directions using photocells or sensors

Info

Publication number
CH591257A5
CH591257A5 CH465276A CH465276A CH591257A5 CH 591257 A5 CH591257 A5 CH 591257A5 CH 465276 A CH465276 A CH 465276A CH 465276 A CH465276 A CH 465276A CH 591257 A5 CH591257 A5 CH 591257A5
Authority
CH
Switzerland
Prior art keywords
radiation
scattered
detector according
scattered radiation
scatter
Prior art date
Application number
CH465276A
Other languages
German (de)
English (en)
Original Assignee
Cerberus Ag
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 Cerberus Ag filed Critical Cerberus Ag
Priority to CH465276A priority Critical patent/CH591257A5/de
Priority to JP1977044078U priority patent/JPS52140377U/ja
Priority to JP1977044079U priority patent/JPS564224Y2/ja
Publication of CH591257A5 publication Critical patent/CH591257A5/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
    • G08B17/103—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
    • 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
    • G08B17/11—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)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
CH465276A 1976-04-13 1976-04-13 Radiation scatter smoke detector - has scatter detector receivers coaxial to radiation bundle to scan different directions using photocells or sensors CH591257A5 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH465276A CH591257A5 (en) 1976-04-13 1976-04-13 Radiation scatter smoke detector - has scatter detector receivers coaxial to radiation bundle to scan different directions using photocells or sensors
JP1977044078U JPS52140377U (US20110009641A1-20110113-C00116.png) 1976-04-13 1977-04-11
JP1977044079U JPS564224Y2 (US20110009641A1-20110113-C00116.png) 1976-04-13 1977-04-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH465276A CH591257A5 (en) 1976-04-13 1976-04-13 Radiation scatter smoke detector - has scatter detector receivers coaxial to radiation bundle to scan different directions using photocells or sensors

Publications (1)

Publication Number Publication Date
CH591257A5 true CH591257A5 (en) 1977-09-15

Family

ID=4280107

Family Applications (1)

Application Number Title Priority Date Filing Date
CH465276A CH591257A5 (en) 1976-04-13 1976-04-13 Radiation scatter smoke detector - has scatter detector receivers coaxial to radiation bundle to scan different directions using photocells or sensors

Country Status (2)

Country Link
JP (2) JPS564224Y2 (US20110009641A1-20110113-C00116.png)
CH (1) CH591257A5 (US20110009641A1-20110113-C00116.png)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447548A1 (fr) * 1979-01-29 1980-08-22 Chamourat Patrick Appareil de detection de particules en suspension dans un fluide
EP0257248A2 (de) * 1986-08-19 1988-03-02 Impulsphysik GmbH Streulichtmessgerät
FR2611047A1 (fr) * 1987-02-13 1988-08-19 Lambert Electronic Services Fumimetre a flux continu discriminateur de particules
WO1992019955A1 (en) * 1991-05-01 1992-11-12 Allied-Signal Inc. Smoke detector apparatus
DE19781742B4 (de) * 1996-05-03 2010-07-01 Vfs Technologies Ltd. Nachweis von Schmutzstoffen in der Luft
CN103606241A (zh) * 2013-11-21 2014-02-26 中国科学技术大学 立体多角度激光烟雾散射测量装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0236112Y2 (US20110009641A1-20110113-C00116.png) * 1984-11-20 1990-10-02
US8743366B2 (en) * 2012-08-31 2014-06-03 Fenwal Controls Of Japan, Ltd. Light emission portion, photoelectric smoke sensor, and suction-type smoke sensing system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447548A1 (fr) * 1979-01-29 1980-08-22 Chamourat Patrick Appareil de detection de particules en suspension dans un fluide
EP0257248A2 (de) * 1986-08-19 1988-03-02 Impulsphysik GmbH Streulichtmessgerät
EP0257248A3 (de) * 1986-08-19 1989-09-13 Impulsphysik GmbH Streulichtmessgerät
FR2611047A1 (fr) * 1987-02-13 1988-08-19 Lambert Electronic Services Fumimetre a flux continu discriminateur de particules
WO1988005994A2 (fr) * 1987-02-13 1988-08-25 Lambert Electronics Services Fumimetre a flux continu discriminateur de particules
WO1988005994A3 (fr) * 1987-02-13 1988-10-06 Lambert Electronics Services Fumimetre a flux continu discriminateur de particules
WO1992019955A1 (en) * 1991-05-01 1992-11-12 Allied-Signal Inc. Smoke detector apparatus
DE19781742B4 (de) * 1996-05-03 2010-07-01 Vfs Technologies Ltd. Nachweis von Schmutzstoffen in der Luft
DE19781742C5 (de) * 1996-05-03 2016-05-19 Xtralis Technologies Ltd Nachweis von Schmutzstoffen in der Luft
CN103606241A (zh) * 2013-11-21 2014-02-26 中国科学技术大学 立体多角度激光烟雾散射测量装置

Also Published As

Publication number Publication date
JPS52143978U (US20110009641A1-20110113-C00116.png) 1977-10-31
JPS564224Y2 (US20110009641A1-20110113-C00116.png) 1981-01-29
JPS52140377U (US20110009641A1-20110113-C00116.png) 1977-10-24

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Legal Events

Date Code Title Description
PL Patent ceased