JPS564224Y2 - - Google Patents
Info
- Publication number
- JPS564224Y2 JPS564224Y2 JP1977044079U JP4407977U JPS564224Y2 JP S564224 Y2 JPS564224 Y2 JP S564224Y2 JP 1977044079 U JP1977044079 U JP 1977044079U JP 4407977 U JP4407977 U JP 4407977U JP S564224 Y2 JPS564224 Y2 JP S564224Y2
- 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.)
- Expired
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)
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 (2)
| Publication Number | Publication Date |
|---|---|
| JPS52143978U JPS52143978U (fi) | 1977-10-31 |
| JPS564224Y2 true JPS564224Y2 (fi) | 1981-01-29 |
Family
ID=4280107
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977044078U Pending JPS52140377U (fi) | 1976-04-13 | 1977-04-11 | |
| JP1977044079U Expired JPS564224Y2 (fi) | 1976-04-13 | 1977-04-11 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977044078U Pending JPS52140377U (fi) | 1976-04-13 | 1977-04-11 |
Country Status (2)
| Country | Link |
|---|---|
| JP (2) | JPS52140377U (fi) |
| CH (1) | CH591257A5 (fi) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (7)
| 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 |
| JPH0236112Y2 (fi) * | 1984-11-20 | 1990-10-02 | ||
| DE3628072A1 (de) * | 1986-08-19 | 1987-04-09 | Fruengel Frank Dr Ing | Aerosol- und feinstaubmessgeraet nach dem streulichtprinzip |
| FR2611047B1 (fr) * | 1987-02-13 | 1989-06-30 | Lambert Electronic Services | Fumimetre a flux continu discriminateur de particules |
| US5164604A (en) * | 1991-05-01 | 1992-11-17 | Allied-Signal Inc. | Multiport particle detection apparatus utilizing a plenum having a plurality of spatically separate channels in fluid combination |
| AUPN965896A0 (en) * | 1996-05-03 | 1996-05-30 | Vision Products Pty Ltd | The detection of airborne pollutants |
| RU2541178C2 (ru) * | 2012-08-31 | 2015-02-10 | Фенвал Контролз Оф Джэпэн, Лтд. | Светоизлучающий участок, фотоэлектрический датчик дыма и система всасывающего типа для определения присутствия дыма |
-
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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|---|
| JPS52143978U (fi) | 1977-10-31 |
| JPS52140377U (fi) | 1977-10-24 |
| CH591257A5 (en) | 1977-09-15 |