DE9002458U1 - - Google Patents
Info
- Publication number
- DE9002458U1 DE9002458U1 DE9002458U DE9002458U DE9002458U1 DE 9002458 U1 DE9002458 U1 DE 9002458U1 DE 9002458 U DE9002458 U DE 9002458U DE 9002458 U DE9002458 U DE 9002458U DE 9002458 U1 DE9002458 U1 DE 9002458U1
- Authority
- DE
- Germany
- 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 - Lifetime
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
-
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
-
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
- G01N2021/151—Gas blown
-
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
- G01N2021/155—Monitoring cleanness of window, lens, or other parts
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)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9002458U DE9002458U1 (US20080038144A1-20080214-P00900.png) | 1990-03-02 | 1990-03-02 | |
| DE9011259U DE9011259U1 (US20080038144A1-20080214-P00900.png) | 1990-03-02 | 1990-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9002458U DE9002458U1 (US20080038144A1-20080214-P00900.png) | 1990-03-02 | 1990-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE9002458U1 true DE9002458U1 (US20080038144A1-20080214-P00900.png) | 1990-05-17 |
Family
ID=6851546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE9002458U Expired - Lifetime DE9002458U1 (US20080038144A1-20080214-P00900.png) | 1990-03-02 | 1990-03-02 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE9002458U1 (US20080038144A1-20080214-P00900.png) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0468074A1 (de) * | 1990-07-26 | 1992-01-29 | Siemens Aktiengesellschaft | Vorrichtung zur Messung der Trübung von Rauchgas |
| FR2667941A1 (fr) * | 1990-10-16 | 1992-04-17 | Volkswagen Ag | Dispositif permettant la mesure dynamique de la densite de particules dans un flux gazeux. |
-
1990
- 1990-03-02 DE DE9002458U patent/DE9002458U1/de not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0468074A1 (de) * | 1990-07-26 | 1992-01-29 | Siemens Aktiengesellschaft | Vorrichtung zur Messung der Trübung von Rauchgas |
| FR2667941A1 (fr) * | 1990-10-16 | 1992-04-17 | Volkswagen Ag | Dispositif permettant la mesure dynamique de la densite de particules dans un flux gazeux. |
