FR2318417B1 - - Google Patents
Info
- Publication number
- FR2318417B1 FR2318417B1 FR7621533A FR7621533A FR2318417B1 FR 2318417 B1 FR2318417 B1 FR 2318417B1 FR 7621533 A FR7621533 A FR 7621533A FR 7621533 A FR7621533 A FR 7621533A FR 2318417 B1 FR2318417 B1 FR 2318417B1
- Authority
- FR
- France
- Legal status (The legal status 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 status listed.)
- Expired
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
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (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 |
|---|---|
| FR2318417A1 FR2318417A1 (fr) | 1977-02-11 |
| FR2318417B1 true FR2318417B1 (US20100223739A1-20100909-C00005.png) | 1979-10-12 |
Family
ID=13896645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7621533A Granted FR2318417A1 (fr) | 1975-07-15 | 1976-07-13 | Detecteur de fumee du type a diffusion de lumiere |
Country Status (8)
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 |
| ATE4251T1 (de) * | 1979-07-13 | 1983-08-15 | Securiton Ag | Verfahren zur feststellung von aerosolen in luft, welche sich in einer pruefzone befindet sowie geraet zur ausfuehrung 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 |
| US3653767A (en) * | 1967-04-10 | 1972-04-04 | American Standard Inc | Particle size distribution measurement using polarized light of a plurality of wavelengths |
| 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 DE DE19762630843 patent/DE2630843A1/de not_active Ceased
- 1976-07-09 SE SE7607902A patent/SE416852B/xx not_active IP Right Cessation
- 1976-07-12 GB GB28876/76A patent/GB1560421A/en not_active Expired
- 1976-07-12 CA CA256,746A patent/CA1064139A/en not_active Expired
- 1976-07-12 IT IT50372/76A patent/IT1078734B/it active
- 1976-07-13 FR FR7621533A patent/FR2318417A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| SE7607902L (sv) | 1977-01-16 |
| US4103997A (en) | 1978-08-01 |
| JPS5855446B2 (ja) | 1983-12-09 |
| DE2630843A1 (de) | 1977-01-20 |
| SE416852B (sv) | 1981-02-09 |
| CA1064139A (en) | 1979-10-09 |
| GB1560421A (en) | 1980-02-06 |
| IT1078734B (it) | 1985-05-08 |
| JPS5210788A (en) | 1977-01-27 |
| FR2318417A1 (fr) | 1977-02-11 |
