JPS5359481A - Light attenuation type smoke detector - Google Patents
Light attenuation type smoke detectorInfo
- Publication number
- JPS5359481A JPS5359481A JP13437276A JP13437276A JPS5359481A JP S5359481 A JPS5359481 A JP S5359481A JP 13437276 A JP13437276 A JP 13437276A JP 13437276 A JP13437276 A JP 13437276A JP S5359481 A JPS5359481 A JP S5359481A
- Authority
- JP
- Japan
- Prior art keywords
- smoke
- smoke detector
- light attenuation
- type smoke
- optical paths
- Prior art date
- 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.)
- Granted
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
- G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13437276A JPS5359481A (en) | 1976-11-09 | 1976-11-09 | Light attenuation type smoke detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13437276A JPS5359481A (en) | 1976-11-09 | 1976-11-09 | Light attenuation type smoke detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5359481A true JPS5359481A (en) | 1978-05-29 |
JPS5746593B2 JPS5746593B2 (ja) | 1982-10-04 |
Family
ID=15126836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13437276A Granted JPS5359481A (en) | 1976-11-09 | 1976-11-09 | Light attenuation type smoke detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5359481A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58109052U (ja) * | 1982-01-19 | 1983-07-25 | 三洋電機株式会社 | ドライクリーニング溶剤の濁度検出装置 |
-
1976
- 1976-11-09 JP JP13437276A patent/JPS5359481A/ja active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58109052U (ja) * | 1982-01-19 | 1983-07-25 | 三洋電機株式会社 | ドライクリーニング溶剤の濁度検出装置 |
JPH0128452Y2 (ja) * | 1982-01-19 | 1989-08-30 |
Also Published As
Publication number | Publication date |
---|---|
JPS5746593B2 (ja) | 1982-10-04 |
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