SE335080B - - Google Patents

Info

Publication number
SE335080B
SE335080B SE10237/70A SE1023770A SE335080B SE 335080 B SE335080 B SE 335080B SE 10237/70 A SE10237/70 A SE 10237/70A SE 1023770 A SE1023770 A SE 1023770A SE 335080 B SE335080 B SE 335080B
Authority
SE
Sweden
Application number
SE10237/70A
Inventor
E Lindgren
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE10237/70A priority Critical patent/SE335080B/xx
Publication of SE335080B publication Critical patent/SE335080B/xx
Priority to FI1709/71A priority patent/FI53521C/fi
Priority to DE19712134563 priority patent/DE2134563A1/de
Priority to GB3337871A priority patent/GB1342266A/en
Priority to NO02814/71A priority patent/NO126936B/no
Priority to DK365271AA priority patent/DK127616B/da
Priority to FR7127021A priority patent/FR2104804B1/fr
Priority to CH1085671A priority patent/CH539902A/de

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
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/08—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature with bimetallic element
    • 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
    • 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

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Outer Garments And Coats (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Fire-Detection Mechanisms (AREA)
SE10237/70A 1970-07-24 1970-07-24 SE335080B (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE10237/70A SE335080B (fr) 1970-07-24 1970-07-24
FI1709/71A FI53521C (fi) 1970-07-24 1971-06-17 Roekdetektor foer optisk detektering av foerbraenningsalstrade aerosoler
DE19712134563 DE2134563A1 (de) 1970-07-24 1971-07-06 Rauchdetektor zum optischen Ermitteln von durch Verbrennung erzeugten Aerosolen
GB3337871A GB1342266A (en) 1970-07-24 1971-07-15 Aerosol detection
NO02814/71A NO126936B (fr) 1970-07-24 1971-07-23
DK365271AA DK127616B (da) 1970-07-24 1971-07-23 Røgdetektor til optisk detektering af forbrændingsfrembragte aerosoler.
FR7127021A FR2104804B1 (fr) 1970-07-24 1971-07-23
CH1085671A CH539902A (de) 1970-07-24 1971-07-23 Rauchdetektor zum optischen Ermitteln der bei Bränden erzeugten Aerosole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE10237/70A SE335080B (fr) 1970-07-24 1970-07-24

Publications (1)

Publication Number Publication Date
SE335080B true SE335080B (fr) 1971-05-10

Family

ID=20291970

Family Applications (1)

Application Number Title Priority Date Filing Date
SE10237/70A SE335080B (fr) 1970-07-24 1970-07-24

Country Status (8)

Country Link
CH (1) CH539902A (fr)
DE (1) DE2134563A1 (fr)
DK (1) DK127616B (fr)
FI (1) FI53521C (fr)
FR (1) FR2104804B1 (fr)
GB (1) GB1342266A (fr)
NO (1) NO126936B (fr)
SE (1) SE335080B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7604502L (sv) * 1976-04-15 1977-10-16 Ericsson Telefon Ab L M Optisk branddetektor
GB2005404A (en) * 1977-09-26 1979-04-19 Bendix Corp "Dust Monitor"
GB2272760A (en) * 1992-11-20 1994-05-25 Thorn Security Optical detection of combustion products
CN107991236B (zh) * 2017-12-04 2020-08-25 华北电力大学（保定） 微生物气溶胶检测装置
CN114018853B (zh) * 2021-11-24 2024-03-26 青岛崂应海纳光电环保集团有限公司 光度计气室及气体分析模块

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE494410A (fr) *
GB715519A (en) * 1952-08-13 1954-09-15 Kidde Walter Co Ltd Method and apparatus for detection of smoke

Also Published As

Publication number Publication date
FI53521B (fr) 1978-01-31
FI53521C (fi) 1978-05-10
FR2104804B1 (fr) 1975-07-11
DK127616B (da) 1973-12-03
DE2134563A1 (de) 1972-01-27
NO126936B (fr) 1973-04-09
FR2104804A1 (fr) 1972-04-21
GB1342266A (en) 1974-01-03
CH539902A (de) 1973-07-31

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