FR846544A - Densimètre photométrique - Google Patents
Densimètre photométriqueInfo
- Publication number
- FR846544A FR846544A FR846544DA FR846544A FR 846544 A FR846544 A FR 846544A FR 846544D A FR846544D A FR 846544DA FR 846544 A FR846544 A FR 846544A
- Authority
- FR
- France
- Prior art keywords
- density meter
- photometric density
- photometric
- meter
- density
- 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
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
- G01N21/29—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using visual detection
- G01N21/293—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using visual detection with colour charts, graduated scales or turrets
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR846544T | 1938-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR846544A true FR846544A (fr) | 1939-09-19 |
Family
ID=9313404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR846544D Expired FR846544A (fr) | 1938-05-27 | 1938-05-27 | Densimètre photométrique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR846544A (fr) |
-
1938
- 1938-05-27 FR FR846544D patent/FR846544A/fr not_active Expired
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