JPS4952677A - - Google Patents
Info
- Publication number
- JPS4952677A JPS4952677A JP48063703A JP6370373A JPS4952677A JP S4952677 A JPS4952677 A JP S4952677A JP 48063703 A JP48063703 A JP 48063703A JP 6370373 A JP6370373 A JP 6370373A JP S4952677 A JPS4952677 A JP S4952677A
- Authority
- JP
- Japan
- 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.)
- Pending
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)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Fire-Detection Mechanisms (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPA923072 | 1972-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4952677A true JPS4952677A (cs) | 1974-05-22 |
Family
ID=3765103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48063703A Pending JPS4952677A (cs) | 1972-06-06 | 1973-06-06 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3874795A (cs) |
| JP (1) | JPS4952677A (cs) |
| CH (1) | CH564238A5 (cs) |
| GB (1) | GB1419146A (cs) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61122553A (ja) * | 1984-11-20 | 1986-06-10 | Shimizu Constr Co Ltd | クリ−ンル−ム用煙感知器 |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4125779A (en) * | 1977-07-13 | 1978-11-14 | Chloride, Incorporated | Smoke detector |
| US4155653A (en) * | 1977-10-14 | 1979-05-22 | The United States Of America As Represented By The Secretary Of The Navy | Smoke-measuring transducer |
| CA1277005C (en) * | 1983-10-21 | 1990-11-27 | Martin T. Cole | Smoke detection apparatus |
| US5440145A (en) * | 1991-10-14 | 1995-08-08 | I.E.I. Pty. Ltd. | Sampling chamber for a pollution detector |
| US7564365B2 (en) * | 2002-08-23 | 2009-07-21 | Ge Security, Inc. | Smoke detector and method of detecting smoke |
| US9805570B2 (en) * | 2011-06-22 | 2017-10-31 | Garrett Thermal Systems Limited | Particle detector with dust rejection |
| US9140646B2 (en) | 2012-04-29 | 2015-09-22 | Valor Fire Safety, Llc | Smoke detector with external sampling volume using two different wavelengths and ambient light detection for measurement correction |
| US8947244B2 (en) | 2012-04-29 | 2015-02-03 | Valor Fire Safety, Llc | Smoke detector utilizing broadband light, external sampling volume, and internally reflected light |
| US8907802B2 (en) | 2012-04-29 | 2014-12-09 | Valor Fire Safety, Llc | Smoke detector with external sampling volume and ambient light rejection |
| JP6407295B2 (ja) | 2013-10-30 | 2018-10-17 | ヴァラー ファイヤー セーフティー， エルエルシー | 外部サンプリング体積および周囲光拒絶を有する煙検出器 |
| GB2531495B (en) * | 2014-06-16 | 2017-04-12 | Apollo Fire Detectors Ltd | Smoke detector |
| EP4300457A3 (en) | 2016-11-11 | 2024-03-13 | Carrier Corporation | High sensitivity fiber optic based detection |
| US11151853B2 (en) | 2016-11-11 | 2021-10-19 | Carrier Corporation | High sensitivity fiber optic based detection |
| CA3043500A1 (en) | 2016-11-11 | 2018-05-17 | Carrier Corporation | High sensitivity fiber optic based detection |
| EP3539108B1 (en) | 2016-11-11 | 2020-08-12 | Carrier Corporation | High sensitivity fiber optic based detection |
| CA3043583A1 (en) | 2016-11-11 | 2018-05-17 | Carrier Corporation | High sensitivity fiber optic based detection |
| RU179257U1 (ru) * | 2017-07-03 | 2018-05-07 | федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский национальный исследовательский университет информационных технологий, механики и оптики" (Университет ИТМО) | Оптический датчик дыма |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB918525A (en) * | 1958-04-29 | 1963-02-13 | Hartridge Ltd Leslie | Improvements in and relating to smokemeters |
| US3231748A (en) * | 1961-10-30 | 1966-01-25 | Fyr Fyter Co | Smoke detector |
| US3313946A (en) * | 1962-11-30 | 1967-04-11 | Goodwin | Smoke, flame, critical temperature and rate of temperature rise detector |
| US3563661A (en) * | 1969-08-29 | 1971-02-16 | Battelle Development Corp | Integrating nephelometer |
-
1973
- 1973-05-30 GB GB2566073A patent/GB1419146A/en not_active Expired
- 1973-06-05 US US367260A patent/US3874795A/en not_active Expired - Lifetime
- 1973-06-06 CH CH822173A patent/CH564238A5/xx not_active IP Right Cessation
- 1973-06-06 JP JP48063703A patent/JPS4952677A/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61122553A (ja) * | 1984-11-20 | 1986-06-10 | Shimizu Constr Co Ltd | クリ−ンル−ム用煙感知器 |
Also Published As
| Publication number | Publication date |
|---|---|
| US3874795A (en) | 1975-04-01 |
| CH564238A5 (cs) | 1975-07-15 |
| GB1419146A (en) | 1975-12-24 |