JPS4897582A - - Google Patents
Info
- Publication number
- JPS4897582A JPS4897582A JP1522573A JP1522573A JPS4897582A JP S4897582 A JPS4897582 A JP S4897582A JP 1522573 A JP1522573 A JP 1522573A JP 1522573 A JP1522573 A JP 1522573A JP S4897582 A JPS4897582 A JP S4897582A
- Authority
- JP
- Japan
- 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.)
- Pending
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
- G01N21/251—Colorimeters; Construction thereof
- G01N21/253—Colorimeters; Construction thereof for batch operation, i.e. multisample apparatus
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00224457A US3819276A (en) | 1971-02-09 | 1972-02-08 | Digital direct reading colorimeter |
| US00310771A US3833864A (en) | 1972-11-30 | 1972-11-30 | Digital direct reading colorimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4897582A true JPS4897582A (en) | 1973-12-12 |
Family
ID=26918732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1522573A Pending JPS4897582A (en) | 1972-02-08 | 1973-02-08 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS4897582A (en) |
| CA (1) | CA980147A (en) |
| GB (1) | GB1424823A (en) |
| NL (1) | NL7301816A (en) |
| SE (1) | SE409368B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7656527B2 (en) | 2006-11-07 | 2010-02-02 | Deka Products Limited Partnership | Method and apparatus for determining concentration using polarized light |
| US7751043B2 (en) | 2007-11-02 | 2010-07-06 | Deka Products Limited Partnership | Apparatus and methods for concentration determination using polarized light |
-
1973
- 1973-02-02 SE SE7301448A patent/SE409368B/en unknown
- 1973-02-06 GB GB574373A patent/GB1424823A/en not_active Expired
- 1973-02-07 CA CA163,059A patent/CA980147A/en not_active Expired
- 1973-02-08 NL NL7301816A patent/NL7301816A/xx unknown
- 1973-02-08 JP JP1522573A patent/JPS4897582A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CA980147A (en) | 1975-12-23 |
| NL7301816A (en) | 1973-08-10 |
| SE409368B (en) | 1979-08-13 |
| GB1424823A (en) | 1976-02-11 |