FR802768A - Procédé et dispositif pour la détermination de la densité de coloration des liquides - Google Patents
Procédé et dispositif pour la détermination de la densité de coloration des liquidesInfo
- Publication number
- FR802768A FR802768A FR802768DA FR802768A FR 802768 A FR802768 A FR 802768A FR 802768D A FR802768D A FR 802768DA FR 802768 A FR802768 A FR 802768A
- Authority
- FR
- France
- Prior art keywords
- liquids
- determining
- coloring density
- coloring
- 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
- 238000004040 coloring Methods 0.000 title 1
- 239000007788 liquid Substances 0.000 title 1
- 238000000034 method Methods 0.000 title 1
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
- G01N21/251—Colorimeters; Construction thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
- G01J1/22—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means
- G01J1/24—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means using electric radiation detectors
Landscapes
- Physics & Mathematics (AREA)
- General 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)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (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 |
---|---|---|---|
US741804A US2073223A (en) | 1934-08-28 | 1934-08-28 | Means for determining color density of liquids |
Publications (1)
Publication Number | Publication Date |
---|---|
FR802768A true FR802768A (fr) | 1936-09-15 |
Family
ID=9803242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR802768D Expired FR802768A (fr) | 1934-08-28 | 1936-03-02 | Procédé et dispositif pour la détermination de la densité de coloration des liquides |
Country Status (3)
Country | Link |
---|---|
US (1) | US2073223A (fr) |
FR (1) | FR802768A (fr) |
GB (1) | GB464001A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1029594B (de) * | 1954-04-26 | 1958-05-08 | Lothar Franke | Objektive Messeinrichtung fuer Schwaerzung u. dgl. |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE746395C (de) * | 1937-11-09 | 1944-08-05 | Magnus Rudolf | Abblendvorrichtung für Geräte zum Messen des Lichtdurchlasses, insbesondere lichtdurchlässiger Schichten. |
DE749882C (de) * | 1941-03-04 | 1944-12-08 | Nier, Martin, Dr.-Ing., Dresden-Oberloschwitz | Lichtelektrischer Kolbenweg- und Kurbelwinkeluebertrager |
US2427013A (en) * | 1944-08-29 | 1947-09-09 | Macadams Jesse Edward | Densitometer for measuring the light transmission of a fluid while submerged therein |
US2424858A (en) * | 1945-01-25 | 1947-07-29 | Jurg A Senn | Colorimeter |
US2477209A (en) * | 1946-06-08 | 1949-07-26 | Rouy Auguste Louis Mar Antoine | Colorimeter |
US2483876A (en) * | 1947-01-21 | 1949-10-04 | William J Boyer | Photometric apparatus |
US2593996A (en) * | 1948-12-23 | 1952-04-22 | Interchem Corp | Optical density comparator |
US2769365A (en) * | 1949-08-22 | 1956-11-06 | Loeschcke Hans | Counting device for microscopic particles |
US2713642A (en) * | 1950-11-30 | 1955-07-19 | Vry Corp De | Mountings for photo-cells for use in connection with a sound reproducing motion picture projecting apparatus |
US2832257A (en) * | 1951-01-18 | 1958-04-29 | Henry A Gardner Lab Inc | Exposure head for photoelectric colorimeters |
DE1573195C3 (de) * | 1951-01-28 | 1974-05-30 | Guidi Guido Novello Bologna Guidelli (Italien) | Vorrichtung zur Ermittlung des Lichtdurchlässigkeitsgrades der Atmosphäre |
US2780131A (en) * | 1952-11-19 | 1957-02-05 | Exxon Research Engineering Co | Continuous recording refractometer |
US2844067A (en) * | 1953-05-25 | 1958-07-22 | Edward M Borg | Method for ascertaining the percentage of butter fat content of milk |
US2839963A (en) * | 1953-12-18 | 1958-06-24 | Lever Brothers Ltd | Light transmission inspection device for liquids |
US2912895A (en) * | 1954-03-18 | 1959-11-17 | Hamilton Robert Houston | Spectrophotometry process |
US2834247A (en) * | 1955-01-26 | 1958-05-13 | Beckman Instruments Inc | Optical density analyzing apparatus |
US3137757A (en) * | 1958-02-07 | 1964-06-16 | Parsons & Co Sir Howard G | Apparatus for the analysis of substances by absorption of radiation |
US3533698A (en) * | 1967-09-11 | 1970-10-13 | American Optical Corp | Optical comparison hemoglobinometer with a rotatable light source |
US3625621A (en) * | 1969-07-30 | 1971-12-07 | Calbiochem | Optical densitometer |
US3771877A (en) * | 1972-02-14 | 1973-11-13 | Sargent Welch Scientific Co | Densitometer incorporating optical attenuator with direct readout of optical density |
GB1486505A (en) * | 1974-06-04 | 1977-09-21 | Compur Werk Gmbh & Co | Handheld photoelectric appliance for testing liquids |
US4579253A (en) * | 1977-05-17 | 1986-04-01 | Savin Corporation | Toner control system |
-
1934
- 1934-08-28 US US741804A patent/US2073223A/en not_active Expired - Lifetime
-
1936
- 1936-02-26 GB GB5822/36A patent/GB464001A/en not_active Expired
- 1936-03-02 FR FR802768D patent/FR802768A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1029594B (de) * | 1954-04-26 | 1958-05-08 | Lothar Franke | Objektive Messeinrichtung fuer Schwaerzung u. dgl. |
Also Published As
Publication number | Publication date |
---|---|
GB464001A (en) | 1937-04-09 |
US2073223A (en) | 1937-03-09 |
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