DE2800990A1 - Laser-extinktionsmessgeraet - Google Patents
Laser-extinktionsmessgeraetInfo
- Publication number
- DE2800990A1 DE2800990A1 DE19782800990 DE2800990A DE2800990A1 DE 2800990 A1 DE2800990 A1 DE 2800990A1 DE 19782800990 DE19782800990 DE 19782800990 DE 2800990 A DE2800990 A DE 2800990A DE 2800990 A1 DE2800990 A1 DE 2800990A1
- Authority
- DE
- Germany
- Prior art keywords
- laser
- line filter
- measuring device
- high dust
- extraneous light
- 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.)
- Withdrawn
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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (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 (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782800990 DE2800990A1 (de) | 1978-01-11 | 1978-01-11 | Laser-extinktionsmessgeraet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782800990 DE2800990A1 (de) | 1978-01-11 | 1978-01-11 | Laser-extinktionsmessgeraet |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2800990A1 true DE2800990A1 (de) | 1979-07-19 |
Family
ID=6029276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782800990 Withdrawn DE2800990A1 (de) | 1978-01-11 | 1978-01-11 | Laser-extinktionsmessgeraet |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2800990A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3006046A1 (de) * | 1980-02-18 | 1981-08-20 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung zur optischen messung der rauchdichte |
DE3539263A1 (de) * | 1985-11-06 | 1987-05-14 | Hoelter Heinz | Verfahren zur feststellung der grenzbereiche zwischen kohle und gestein bei walzenschraemmladern und vortriebsmaschinen zur automatischen steuerung derselben |
-
1978
- 1978-01-11 DE DE19782800990 patent/DE2800990A1/de not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3006046A1 (de) * | 1980-02-18 | 1981-08-20 | Siemens AG, 1000 Berlin und 8000 München | Einrichtung zur optischen messung der rauchdichte |
DE3539263A1 (de) * | 1985-11-06 | 1987-05-14 | Hoelter Heinz | Verfahren zur feststellung der grenzbereiche zwischen kohle und gestein bei walzenschraemmladern und vortriebsmaschinen zur automatischen steuerung derselben |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8139 | Disposal/non-payment of the annual fee |