SE7607902L - Rokdetektor av ljusspridningstyp - Google Patents
Rokdetektor av ljusspridningstypInfo
- Publication number
- SE7607902L SE7607902L SE7607902A SE7607902A SE7607902L SE 7607902 L SE7607902 L SE 7607902L SE 7607902 A SE7607902 A SE 7607902A SE 7607902 A SE7607902 A SE 7607902A SE 7607902 L SE7607902 L SE 7607902L
- Authority
- SE
- Sweden
- Prior art keywords
- lambda
- theta
- smoke detector
- light distribution
- distribution type
- Prior art date
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
- 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
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50086793A JPS5855446B2 (ja) | 1975-07-15 | 1975-07-15 | 散乱光式煙感知器 |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7607902L true SE7607902L (sv) | 1977-01-16 |
SE416852B SE416852B (sv) | 1981-02-09 |
Family
ID=13896645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7607902A SE416852B (sv) | 1975-07-15 | 1976-07-09 | Rokdetektor av ljusspridningstyp |
Country Status (8)
Country | Link |
---|---|
US (1) | US4103997A (sv) |
JP (1) | JPS5855446B2 (sv) |
CA (1) | CA1064139A (sv) |
DE (1) | DE2630843A1 (sv) |
FR (1) | FR2318417A1 (sv) |
GB (1) | GB1560421A (sv) |
IT (1) | IT1078734B (sv) |
SE (1) | SE416852B (sv) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4160914A (en) * | 1977-12-16 | 1979-07-10 | Monitek, Inc. | Apparatus for measuring of particulate scattering in fluids |
DE3018021A1 (de) * | 1979-05-16 | 1980-11-27 | Honeywell Inc | Optischer rauchdetektor |
EP0022438B1 (de) * | 1979-07-13 | 1983-07-20 | Securiton AG | Verfahren zur Feststellung von Aerosolen in Luft, welche sich in einer Prüfzone befindet sowie Gerät zur Ausführung desselben |
DE2951459C2 (de) * | 1979-12-20 | 1984-03-29 | Heimann Gmbh, 6200 Wiesbaden | Optische Anordnung für einen Rauchmelder nach dem Lichtstreuungsprinzip |
DE3233368A1 (de) * | 1982-09-08 | 1984-03-08 | Heimann Gmbh, 6200 Wiesbaden | Strahlungsrauchmelder |
DE3334545A1 (de) * | 1983-09-23 | 1985-04-04 | Siemens AG, 1000 Berlin und 8000 München | Optischer rauchmelder |
NL9001415A (nl) * | 1990-06-21 | 1992-01-16 | Ajax De Boer B V | Optische rook-, aerosol- en stofdetector en brandmeldingsapparaat met optische detector. |
GB9014015D0 (en) * | 1990-06-23 | 1990-08-15 | Dennis Peter N J | Improvements in or relating to smoke detectors |
GB2259763B (en) * | 1991-09-20 | 1995-05-31 | Hochiki Co | Fire alarm system |
US5440145A (en) * | 1991-10-14 | 1995-08-08 | I.E.I. Pty. Ltd. | Sampling chamber for a pollution detector |
JP2648560B2 (ja) * | 1993-04-09 | 1997-09-03 | ホーチキ株式会社 | 散乱光式煙感知器 |
US6107925A (en) * | 1993-06-14 | 2000-08-22 | Edwards Systems Technology, Inc. | Method for dynamically adjusting criteria for detecting fire through smoke concentration |
GB9417484D0 (en) * | 1993-09-07 | 1994-10-19 | Hochiki Co | Light scattering type smoke sensor |
US5945924A (en) * | 1996-01-29 | 1999-08-31 | Marman; Douglas H. | Fire and smoke detection and control system |
GB2367358B (en) * | 1997-06-30 | 2002-05-15 | Hochiki Co | Smoke detecting apparatus |
DE102005010454A1 (de) | 2005-03-08 | 2006-09-21 | Robert Bosch Gmbh | Gassensor |
DE102008009213B4 (de) | 2008-02-15 | 2010-09-02 | Perkinelmer Optoelectronics Gmbh & Co.Kg | Strahlungsleiter, Detektor, Herstellungsverfahren |
US11302166B2 (en) * | 2019-12-02 | 2022-04-12 | Carrier Corporation | Photo-electric smoke detector using single emitter and single receiver |
US11069224B1 (en) * | 2020-07-10 | 2021-07-20 | Everday Techology Co., Ltd. | Smoke detector and chamber |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3474435A (en) * | 1966-10-11 | 1969-10-21 | Vericon Inc | Vapor or particle detection devices |
US3612689A (en) * | 1967-04-10 | 1971-10-12 | American Standard Inc | Suspended particle concentration determination using polarized light |
US3524707A (en) * | 1967-08-14 | 1970-08-18 | Julian E Hansen Sr | Pulsating light source smoke detector |
US3505529A (en) * | 1968-02-08 | 1970-04-07 | Bliss Co | Radiation sensitive smoke detecting device |
US3621220A (en) * | 1969-08-29 | 1971-11-16 | Norman C Ford Jr | Scattered light measurement providing autocorrelation function |
US3701620A (en) * | 1971-10-21 | 1972-10-31 | Science Spectrum | Sample scattering cell for a photometer |
DE2338481C2 (de) * | 1973-07-28 | 1985-07-04 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Vorrichtung zur schnellen Messung der zeitlichen Änderung der Strahlungsintensität |
-
1975
- 1975-07-15 JP JP50086793A patent/JPS5855446B2/ja not_active Expired
-
1976
- 1976-07-07 US US05/703,201 patent/US4103997A/en not_active Expired - Lifetime
- 1976-07-09 SE SE7607902A patent/SE416852B/sv not_active IP Right Cessation
- 1976-07-09 DE DE19762630843 patent/DE2630843A1/de not_active Ceased
- 1976-07-12 IT IT50372/76A patent/IT1078734B/it active
- 1976-07-12 GB GB28876/76A patent/GB1560421A/en not_active Expired
- 1976-07-12 CA CA256,746A patent/CA1064139A/en not_active Expired
- 1976-07-13 FR FR7621533A patent/FR2318417A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2630843A1 (de) | 1977-01-20 |
FR2318417B1 (sv) | 1979-10-12 |
IT1078734B (it) | 1985-05-08 |
JPS5210788A (en) | 1977-01-27 |
GB1560421A (en) | 1980-02-06 |
US4103997A (en) | 1978-08-01 |
SE416852B (sv) | 1981-02-09 |
CA1064139A (en) | 1979-10-09 |
JPS5855446B2 (ja) | 1983-12-09 |
FR2318417A1 (fr) | 1977-02-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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