BE493102A - - Google Patents
Info
- Publication number
- BE493102A BE493102A BE493102DA BE493102A BE 493102 A BE493102 A BE 493102A BE 493102D A BE493102D A BE 493102DA BE 493102 A BE493102 A BE 493102A
- Authority
- BE
- Belgium
- Prior art keywords
- smoke
- cell
- tunnel
- emi
- cells
- Prior art date
Links
- 239000000779 smoke Substances 0.000 claims description 42
- 239000002245 particle Substances 0.000 claims description 16
- 238000005286 illumination Methods 0.000 claims description 13
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 claims description 3
- 230000010287 polarization Effects 0.000 claims 2
- 239000000126 substance Substances 0.000 claims 2
- 150000001768 cations Chemical class 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB282899X | 1949-01-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE493102A true BE493102A (enrdf_load_stackoverflow) |
Family
ID=10273294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE493102D BE493102A (enrdf_load_stackoverflow) | 1949-01-05 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE493102A (enrdf_load_stackoverflow) |
| CH (1) | CH282899A (enrdf_load_stackoverflow) |
| FR (1) | FR1007552A (enrdf_load_stackoverflow) |
-
0
- BE BE493102D patent/BE493102A/fr unknown
-
1950
- 1950-01-03 FR FR1007552D patent/FR1007552A/fr not_active Expired
- 1950-01-05 CH CH282899D patent/CH282899A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH282899A (fr) | 1952-05-15 |
| FR1007552A (fr) | 1952-05-07 |
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