SE406657B - Rokdetektor med en ljuskella och en forsta och en andra fotocell - Google Patents

Rokdetektor med en ljuskella och en forsta och en andra fotocell

Info

Publication number
SE406657B
SE406657B SE7513301A SE7513301A SE406657B SE 406657 B SE406657 B SE 406657B SE 7513301 A SE7513301 A SE 7513301A SE 7513301 A SE7513301 A SE 7513301A SE 406657 B SE406657 B SE 406657B
Authority
SE
Sweden
Prior art keywords
light source
smoke detector
another photocell
photocell
another
Prior art date
Application number
SE7513301A
Other languages
English (en)
Swedish (sv)
Other versions
SE7513301L (sv
Inventor
W J Malinowski
Original Assignee
Chloride Batterijen Bv
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
Priority claimed from US05/621,085 external-priority patent/US4011458A/en
Application filed by Chloride Batterijen Bv filed Critical Chloride Batterijen Bv
Publication of SE7513301L publication Critical patent/SE7513301L/xx
Publication of SE406657B publication Critical patent/SE406657B/xx

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
    • 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

  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (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)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Emergency Alarm Devices (AREA)
SE7513301A 1974-11-27 1975-11-26 Rokdetektor med en ljuskella och en forsta och en andra fotocell SE406657B (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52758974A 1974-11-27 1974-11-27
US05/621,085 US4011458A (en) 1975-10-09 1975-10-09 Photoelectric detector with light source intensity regulation

Publications (2)

Publication Number Publication Date
SE7513301L SE7513301L (sv) 1976-05-28
SE406657B true SE406657B (sv) 1979-02-19

Family

ID=27062456

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7513301A SE406657B (sv) 1974-11-27 1975-11-26 Rokdetektor med en ljuskella och en forsta och en andra fotocell

Country Status (10)

Country Link
JP (1) JPS5624898B2 (ja)
AU (1) AU497359B2 (ja)
BR (1) BR7507896A (ja)
CA (1) CA1052887A (ja)
CH (1) CH604299A5 (ja)
DE (1) DE2553339A1 (ja)
FR (1) FR2292975A1 (ja)
GB (1) GB1529473A (ja)
IT (1) IT1054912B (ja)
SE (1) SE406657B (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53102085A (en) * 1977-02-18 1978-09-06 Mochida Pharm Co Ltd Instrument for measuring amount of bilirubin
DE2965650D1 (en) * 1979-02-01 1983-07-21 Bbc Brown Boveri & Cie Photoelectric system for monitoring flames and fumes
US4306230A (en) * 1979-12-10 1981-12-15 Honeywell Inc. Self-checking photoelectric smoke detector
JPH02123691U (ja) * 1989-03-23 1990-10-11
CN101292573A (zh) 2005-10-19 2008-10-22 皇家飞利浦电子股份有限公司 彩色照明系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1164793A (en) * 1966-04-05 1969-09-24 Photain Controls Ltd Photo-electric Detection Devices
US3461443A (en) * 1966-11-07 1969-08-12 Alfred W Vasel Smoke detector with means indicating the failure of the light source
GB1222351A (en) * 1966-12-07 1971-02-10 Derek Charles Adams Improvements in or relating to fire-detection apparatus
GB1278205A (en) * 1970-02-11 1972-06-21 Shorrock Develpoments Ltd Smoke detecting device
US3736431A (en) * 1971-04-30 1973-05-29 Mobil Oil Corp System for monitoring a fluid stream

Also Published As

Publication number Publication date
FR2292975A1 (fr) 1976-06-25
FR2292975B1 (ja) 1981-09-18
JPS5624898B2 (ja) 1981-06-09
AU8670575A (en) 1977-05-26
GB1529473A (en) 1978-10-18
CH604299A5 (ja) 1978-09-15
BR7507896A (pt) 1976-08-10
CA1052887A (en) 1979-04-17
SE7513301L (sv) 1976-05-28
IT1054912B (it) 1981-11-30
AU497359B2 (en) 1978-12-07
JPS5177386A (ja) 1976-07-05
DE2553339A1 (de) 1976-08-12

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