BE584056A - - Google Patents
Info
- Publication number
- BE584056A BE584056A BE584056DA BE584056A BE 584056 A BE584056 A BE 584056A BE 584056D A BE584056D A BE 584056DA BE 584056 A BE584056 A BE 584056A
- Authority
- BE
- Belgium
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
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
-
- 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
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
- G01N21/274—Calibration, base line adjustment, drift correction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (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)
- Immunology (AREA)
- Pathology (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Spectrometry And Color Measurement (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US76990758A | 1958-10-27 | 1958-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE584056A true BE584056A (enrdf_load_stackoverflow) |
Family
ID=25086858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE584056D BE584056A (enrdf_load_stackoverflow) | 1958-10-27 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE584056A (enrdf_load_stackoverflow) |
| CH (1) | CH378561A (enrdf_load_stackoverflow) |
| FR (1) | FR1240249A (enrdf_load_stackoverflow) |
| GB (1) | GB899145A (enrdf_load_stackoverflow) |
-
0
- BE BE584056D patent/BE584056A/xx unknown
-
1959
- 1959-10-13 GB GB3466559A patent/GB899145A/en not_active Expired
- 1959-10-23 CH CH7982659A patent/CH378561A/de unknown
- 1959-10-27 FR FR808556A patent/FR1240249A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH378561A (de) | 1964-06-15 |
| GB899145A (en) | 1962-06-20 |
| FR1240249A (fr) | 1960-09-02 |