FR2297415A1 - Appareil destine au dosage chimique par colorimetrie, opacimetrie ou nephelemetrie - Google Patents
Appareil destine au dosage chimique par colorimetrie, opacimetrie ou nephelemetrieInfo
- Publication number
- FR2297415A1 FR2297415A1 FR7501197A FR7501197A FR2297415A1 FR 2297415 A1 FR2297415 A1 FR 2297415A1 FR 7501197 A FR7501197 A FR 7501197A FR 7501197 A FR7501197 A FR 7501197A FR 2297415 A1 FR2297415 A1 FR 2297415A1
- Authority
- FR
- France
- Prior art keywords
- liquid
- liq
- chemical dosing
- control
- light passing
- 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.)
- Granted
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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
- G01N21/8507—Probe photometers, i.e. with optical measuring part dipped into fluid sample
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- Pathology (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7501197A FR2297415A1 (fr) | 1975-01-08 | 1975-01-08 | Appareil destine au dosage chimique par colorimetrie, opacimetrie ou nephelemetrie |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7501197A FR2297415A1 (fr) | 1975-01-08 | 1975-01-08 | Appareil destine au dosage chimique par colorimetrie, opacimetrie ou nephelemetrie |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2297415A1 true FR2297415A1 (fr) | 1976-08-06 |
FR2297415B1 FR2297415B1 (fr) | 1978-02-03 |
Family
ID=9149852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7501197A Granted FR2297415A1 (fr) | 1975-01-08 | 1975-01-08 | Appareil destine au dosage chimique par colorimetrie, opacimetrie ou nephelemetrie |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2297415A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2448145A2 (fr) * | 1979-02-05 | 1980-08-29 | Oreal | Appareil destine a reperer la quantite de sebum secretee par une peau |
EP0144929A2 (fr) * | 1983-12-08 | 1985-06-19 | Hoechst Aktiengesellschaft | Tête de mesure photométrique |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2321278A1 (de) * | 1972-04-29 | 1973-11-15 | Pratesi | Kolorimeter |
-
1975
- 1975-01-08 FR FR7501197A patent/FR2297415A1/fr active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2321278A1 (de) * | 1972-04-29 | 1973-11-15 | Pratesi | Kolorimeter |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2448145A2 (fr) * | 1979-02-05 | 1980-08-29 | Oreal | Appareil destine a reperer la quantite de sebum secretee par une peau |
EP0144929A2 (fr) * | 1983-12-08 | 1985-06-19 | Hoechst Aktiengesellschaft | Tête de mesure photométrique |
EP0144929A3 (fr) * | 1983-12-08 | 1986-01-15 | Hoechst Aktiengesellschaft | Tête de mesure photométrique |
Also Published As
Publication number | Publication date |
---|---|
FR2297415B1 (fr) | 1978-02-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |