NL6508784A - - Google Patents

Info

Publication number
NL6508784A
NL6508784A NL6508784A NL6508784A NL6508784A NL 6508784 A NL6508784 A NL 6508784A NL 6508784 A NL6508784 A NL 6508784A NL 6508784 A NL6508784 A NL 6508784A NL 6508784 A NL6508784 A NL 6508784A
Authority
NL
Netherlands
Application number
NL6508784A
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 filed Critical
Publication of NL6508784A publication Critical patent/NL6508784A/xx

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
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/06—Investigating concentration of particle suspensions
    • G01N15/065—Investigating concentration of particle suspensions using condensation nuclei counters
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • 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

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Dispersion Chemistry (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
NL6508784A 1964-07-14 1965-07-08 NL6508784A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH923364A CH417405A (de) 1964-07-14 1964-07-14 Vorrichtung zur Feststellung von Aerosolen in Luft

Publications (1)

Publication Number Publication Date
NL6508784A true NL6508784A (xx) 1966-01-17

Family

ID=4349783

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6508784A NL6508784A (xx) 1964-07-14 1965-07-08

Country Status (6)

Country Link
US (1) US3316410A (xx)
CH (1) CH417405A (xx)
DE (1) DE1598226B2 (xx)
GB (1) GB1086870A (xx)
NL (1) NL6508784A (xx)
SE (1) SE322713B (xx)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524066A (en) * 1966-08-22 1970-08-11 Monsanto Co Fluid measurement system having sample chamber with opposed reflecting members for causing multiple reflections
CH491449A (de) * 1969-05-19 1970-05-31 Cerberus Ag Rauchdetektoranordnung mit mindestens einer Rauchmesskammer
US3727056A (en) * 1972-03-03 1973-04-10 Electro Signal Lab Photon couplers with solid state lamps
US3799670A (en) * 1972-08-21 1974-03-26 Pyrotector Europ Gmbh Smoke detector
JPS4992882U (xx) * 1972-11-30 1974-08-12
DE2260313C2 (de) * 1972-12-09 1982-07-29 Bergwerksverband Gmbh, 4300 Essen Verfahren und Gerät zur Bestimmung von Feinstaubkonzentrationen
IL45331A (en) * 1973-11-26 1977-12-30 Chloride Batterijen Bv Photoelectric smoke detector
US4001800A (en) * 1974-06-24 1977-01-04 Gentex Company Smoke detecting device
US4025915A (en) * 1975-10-06 1977-05-24 Electro Signal Lab, Inc. LED smoke detector circuit
US4087799A (en) * 1976-07-08 1978-05-02 Conrac Corporation Particulate products of combustion detector employing solid state elements
US4186390A (en) * 1976-08-30 1980-01-29 Electro Signal Lab, Inc. Battery powered smoke detector
DE2641489C2 (de) * 1976-09-15 1984-05-30 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Übertragung von Meßwerten in einem Brandmeldesystem
US4300133A (en) * 1977-03-28 1981-11-10 Solomon Elias E Smoke detector
US4198627A (en) * 1977-07-12 1980-04-15 Cybernet Electronics Corporation Photoelectric synchronous smoke sensor
JPS5439181A (en) * 1977-09-02 1979-03-26 Nittan Co Ltd Photoelectric smoke detector
JPS5462800A (en) * 1977-10-28 1979-05-21 Nittan Co Ltd Light type smoke sensor having trouble detecting function
US4266219A (en) * 1978-09-18 1981-05-05 Baker Industries, Inc. Supervisory control system for a smoke detector
CH638331A5 (de) * 1979-02-22 1983-09-15 Cerberus Ag Rauchdetektor.
DE3018021A1 (de) * 1979-05-16 1980-11-27 Honeywell Inc Optischer rauchdetektor
AU533232B2 (en) * 1979-06-27 1983-11-10 Hochiki Kabushiki Kaisha Photoelectric detector
DE2965907D1 (en) * 1979-07-13 1983-08-25 Ag Securiton Method for detecting aerosols in air of a control zone and apparatus for its performing
DE2951459C2 (de) * 1979-12-20 1984-03-29 Heimann Gmbh, 6200 Wiesbaden Optische Anordnung für einen Rauchmelder nach dem Lichtstreuungsprinzip
DE3006046A1 (de) * 1980-02-18 1981-08-20 Siemens AG, 1000 Berlin und 8000 München Einrichtung zur optischen messung der rauchdichte
CH657221A5 (de) * 1981-06-15 1986-08-15 Cerberus Ag Rauchdetektor.
DE3133094C2 (de) * 1981-08-21 1986-11-13 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg Schmelzsicherungslastschalter
JPS5963792U (ja) * 1982-10-22 1984-04-26 ニツタン株式会社 光電式煙検出端末機
US4823015A (en) * 1985-05-08 1989-04-18 Adt, Inc. Electrical interference free projected beam smoke detector
DE3628072A1 (de) * 1986-08-19 1987-04-09 Fruengel Frank Dr Ing Aerosol- und feinstaubmessgeraet nach dem streulichtprinzip
CA2052699A1 (en) * 1990-10-19 1992-04-20 Stephen L. Merkel Method and apparatus for monitoring parameters of coating material dispensing systems and processes by analysis of swirl pattern dynamics
GB2260809B (en) * 1991-10-22 1996-04-03 Marconi Gec Ltd Exhaust gas particle sensor
US5208064A (en) * 1991-11-04 1993-05-04 Nordson Corporation Method and apparatus for optically monitoring and controlling a moving fiber of material
DE19512126C1 (de) * 1995-04-04 1996-09-05 Hekatron Gmbh Vorrichtung zum Detektieren eines Gases oder Aerosols
JPH09270085A (ja) * 1996-04-01 1997-10-14 Hamamatsu Photonics Kk 発煙検知装置
AUPQ553800A0 (en) * 2000-02-10 2000-03-02 Cole, Martin Terence Improvements relating to smoke detectors particularily duct monitored smoke detectors
US7564365B2 (en) * 2002-08-23 2009-07-21 Ge Security, Inc. Smoke detector and method of detecting smoke
EP1552489B1 (en) * 2002-08-23 2008-12-10 General Electric Company Rapidly responding, false detection immune alarm signal producing smoke detector
GB2531495B (en) * 2014-06-16 2017-04-12 Apollo Fire Detectors Ltd Smoke detector
CN109596490A (zh) * 2018-11-28 2019-04-09 珠海格力电器股份有限公司 一种粉尘传感器的数据处理方法
CN111009094B (zh) * 2019-11-27 2022-02-18 吴雪丹 新型光电式感烟火灾探测报警方法、装置及系统
CN115938062B (zh) * 2022-11-18 2024-01-23 江苏荣夏安全科技有限公司 一种电气设备自动灭火系统及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1971443A (en) * 1930-04-29 1934-08-28 William G Exton Electrooptical method and means for measuring concentrations, colors, dispersions, etc. of fluids and similar substances
US2241743A (en) * 1940-08-03 1941-05-13 Russell L Schoene Electro-optical instrument
US2436262A (en) * 1944-04-29 1948-02-17 Johns Manville Apparatus for measuring turbidity photoelectrically
US2562181A (en) * 1948-11-05 1951-07-31 Joseph C Frommer Method and means for detecting cloudiness of transparent material
US2806148A (en) * 1952-03-31 1957-09-10 Phillips Petroleum Co Photoelectric analyzer
US2654845A (en) * 1952-11-07 1953-10-06 Cecil S Presenz Vapor detector

Also Published As

Publication number Publication date
GB1086870A (en) 1967-10-11
SE322713B (xx) 1970-04-13
DE1598226A1 (de) 1970-10-15
CH417405A (de) 1966-07-15
US3316410A (en) 1967-04-25
DE1598226B2 (de) 1973-02-08

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