JPH0422459B2 - - Google Patents
Info
- Publication number
- JPH0422459B2 JPH0422459B2 JP60047980A JP4798085A JPH0422459B2 JP H0422459 B2 JPH0422459 B2 JP H0422459B2 JP 60047980 A JP60047980 A JP 60047980A JP 4798085 A JP4798085 A JP 4798085A JP H0422459 B2 JPH0422459 B2 JP H0422459B2
- Authority
- JP
- Japan
- Prior art keywords
- smoke
- light
- smoke stream
- mirror
- concentration
- 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
- 239000000779 smoke Substances 0.000 claims description 50
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 229910052799 carbon Inorganic materials 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 7
- 239000010419 fine particle Substances 0.000 description 6
- 239000003365 glass fiber Substances 0.000 description 5
- 238000000691 measurement method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000010998 test method 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
- 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
-
- 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
- G01N2021/178—Methods for obtaining spatial resolution of the property being measured
-
- 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
- G01N21/59—Transmissivity
- G01N21/5907—Densitometers
- G01N2021/5969—Scanning of a tube, a cuvette, a volume of sample
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/061—Sources
- G01N2201/06113—Coherent sources; lasers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/08—Optical fibres; light guides
- G01N2201/0833—Fibre array at detector, resolving
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/08—Optical fibres; light guides
- G01N2201/084—Fibres for remote 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)
- Investigating Or Analysing Materials By Optical Means (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60047980A JPS61207949A (ja) | 1985-03-11 | 1985-03-11 | 熱機関の吐煙濃度測定方法 |
US06/838,585 US4719360A (en) | 1985-03-11 | 1986-03-11 | Method for determination of concentration of smoke emanating from combustion engine and apparatus for working said method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60047980A JPS61207949A (ja) | 1985-03-11 | 1985-03-11 | 熱機関の吐煙濃度測定方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61207949A JPS61207949A (ja) | 1986-09-16 |
JPH0422459B2 true JPH0422459B2 (enrdf_load_stackoverflow) | 1992-04-17 |
Family
ID=12790457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60047980A Granted JPS61207949A (ja) | 1985-03-11 | 1985-03-11 | 熱機関の吐煙濃度測定方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61207949A (enrdf_load_stackoverflow) |
-
1985
- 1985-03-11 JP JP60047980A patent/JPS61207949A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS61207949A (ja) | 1986-09-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |