CH591257A5 - Radiation scatter smoke detector - has scatter detector receivers coaxial to radiation bundle to scan different directions using photocells or sensors - Google Patents
Radiation scatter smoke detector - has scatter detector receivers coaxial to radiation bundle to scan different directions using photocells or sensorsInfo
- Publication number
- CH591257A5 CH591257A5 CH465276A CH465276A CH591257A5 CH 591257 A5 CH591257 A5 CH 591257A5 CH 465276 A CH465276 A CH 465276A CH 465276 A CH465276 A CH 465276A CH 591257 A5 CH591257 A5 CH 591257A5
- Authority
- CH
- Switzerland
- Prior art keywords
- radiation
- scattered
- detector according
- scattered radiation
- scatter
- Prior art date
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
- 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
- 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
- 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)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH465276A CH591257A5 (en) | 1976-04-13 | 1976-04-13 | Radiation scatter smoke detector - has scatter detector receivers coaxial to radiation bundle to scan different directions using photocells or sensors |
JP1977044079U JPS564224Y2 (US06168776-20010102-C00041.png) | 1976-04-13 | 1977-04-11 | |
JP1977044078U JPS52140377U (US06168776-20010102-C00041.png) | 1976-04-13 | 1977-04-11 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH465276A CH591257A5 (en) | 1976-04-13 | 1976-04-13 | Radiation scatter smoke detector - has scatter detector receivers coaxial to radiation bundle to scan different directions using photocells or sensors |
Publications (1)
Publication Number | Publication Date |
---|---|
CH591257A5 true CH591257A5 (en) | 1977-09-15 |
Family
ID=4280107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH465276A CH591257A5 (en) | 1976-04-13 | 1976-04-13 | Radiation scatter smoke detector - has scatter detector receivers coaxial to radiation bundle to scan different directions using photocells or sensors |
Country Status (2)
Country | Link |
---|---|
JP (2) | JPS52140377U (US06168776-20010102-C00041.png) |
CH (1) | CH591257A5 (US06168776-20010102-C00041.png) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2447548A1 (fr) * | 1979-01-29 | 1980-08-22 | Chamourat Patrick | Appareil de detection de particules en suspension dans un fluide |
EP0257248A2 (de) * | 1986-08-19 | 1988-03-02 | Impulsphysik GmbH | Streulichtmessgerät |
FR2611047A1 (fr) * | 1987-02-13 | 1988-08-19 | Lambert Electronic Services | Fumimetre a flux continu discriminateur de particules |
WO1992019955A1 (en) * | 1991-05-01 | 1992-11-12 | Allied-Signal Inc. | Smoke detector apparatus |
DE19781742B4 (de) * | 1996-05-03 | 2010-07-01 | Vfs Technologies Ltd. | Nachweis von Schmutzstoffen in der Luft |
CN103606241A (zh) * | 2013-11-21 | 2014-02-26 | 中国科学技术大学 | 立体多角度激光烟雾散射测量装置 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0236112Y2 (US06168776-20010102-C00041.png) * | 1984-11-20 | 1990-10-02 | ||
US8743366B2 (en) * | 2012-08-31 | 2014-06-03 | Fenwal Controls Of Japan, Ltd. | Light emission portion, photoelectric smoke sensor, and suction-type smoke sensing system |
-
1976
- 1976-04-13 CH CH465276A patent/CH591257A5/de not_active IP Right Cessation
-
1977
- 1977-04-11 JP JP1977044078U patent/JPS52140377U/ja active Pending
- 1977-04-11 JP JP1977044079U patent/JPS564224Y2/ja not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2447548A1 (fr) * | 1979-01-29 | 1980-08-22 | Chamourat Patrick | Appareil de detection de particules en suspension dans un fluide |
EP0257248A2 (de) * | 1986-08-19 | 1988-03-02 | Impulsphysik GmbH | Streulichtmessgerät |
EP0257248A3 (de) * | 1986-08-19 | 1989-09-13 | Impulsphysik GmbH | Streulichtmessgerät |
FR2611047A1 (fr) * | 1987-02-13 | 1988-08-19 | Lambert Electronic Services | Fumimetre a flux continu discriminateur de particules |
WO1988005994A2 (fr) * | 1987-02-13 | 1988-08-25 | Lambert Electronics Services | Fumimetre a flux continu discriminateur de particules |
WO1988005994A3 (fr) * | 1987-02-13 | 1988-10-06 | Lambert Electronics Services | Fumimetre a flux continu discriminateur de particules |
WO1992019955A1 (en) * | 1991-05-01 | 1992-11-12 | Allied-Signal Inc. | Smoke detector apparatus |
DE19781742B4 (de) * | 1996-05-03 | 2010-07-01 | Vfs Technologies Ltd. | Nachweis von Schmutzstoffen in der Luft |
DE19781742C5 (de) * | 1996-05-03 | 2016-05-19 | Xtralis Technologies Ltd | Nachweis von Schmutzstoffen in der Luft |
CN103606241A (zh) * | 2013-11-21 | 2014-02-26 | 中国科学技术大学 | 立体多角度激光烟雾散射测量装置 |
Also Published As
Publication number | Publication date |
---|---|
JPS52140377U (US06168776-20010102-C00041.png) | 1977-10-24 |
JPS52143978U (US06168776-20010102-C00041.png) | 1977-10-31 |
JPS564224Y2 (US06168776-20010102-C00041.png) | 1981-01-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |