JPH0358056B2 - - Google Patents
Info
- Publication number
- JPH0358056B2 JPH0358056B2 JP1084783A JP1084783A JPH0358056B2 JP H0358056 B2 JPH0358056 B2 JP H0358056B2 JP 1084783 A JP1084783 A JP 1084783A JP 1084783 A JP1084783 A JP 1084783A JP H0358056 B2 JPH0358056 B2 JP H0358056B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- gas
- partition plate
- light emitting
- measured
- 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.)
- Expired
Links
- 238000005192 partition Methods 0.000 claims description 95
- 239000000428 dust Substances 0.000 claims description 46
- 238000005259 measurement Methods 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 description 23
- 239000004065 semiconductor Substances 0.000 description 11
- 239000011521 glass Substances 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 8
- 239000004744 fabric Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 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
- G01N21/532—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke with measurement of scattering and transmission
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)
- Optical Measuring Cells (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1084783A JPS59136639A (ja) | 1983-01-26 | 1983-01-26 | 塵埃濃度の測定法と測定器 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1084783A JPS59136639A (ja) | 1983-01-26 | 1983-01-26 | 塵埃濃度の測定法と測定器 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59136639A JPS59136639A (ja) | 1984-08-06 |
| JPH0358056B2 true JPH0358056B2 (fr) | 1991-09-04 |
Family
ID=11761740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1084783A Granted JPS59136639A (ja) | 1983-01-26 | 1983-01-26 | 塵埃濃度の測定法と測定器 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59136639A (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH056527Y2 (fr) * | 1987-01-12 | 1993-02-19 | ||
| JP4995608B2 (ja) * | 2007-03-22 | 2012-08-08 | 能美防災株式会社 | 煙感知器 |
| CA2765593C (fr) * | 2009-07-07 | 2018-10-30 | Xtralis Technologies Ltd | Conditionnement de chambre |
-
1983
- 1983-01-26 JP JP1084783A patent/JPS59136639A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59136639A (ja) | 1984-08-06 |
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