GB594497A - Improvements in or relating to colorimeters - Google Patents
Improvements in or relating to colorimetersInfo
- Publication number
- GB594497A GB594497A GB1557145A GB1557145A GB594497A GB 594497 A GB594497 A GB 594497A GB 1557145 A GB1557145 A GB 1557145A GB 1557145 A GB1557145 A GB 1557145A GB 594497 A GB594497 A GB 594497A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- fluid
- reading
- photo
- give
- 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
- 239000012530 fluid Substances 0.000 abstract 3
- 239000012086 standard solution Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 230000000295 complement Effects 0.000 abstract 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
Abstract
594,497. Photo-electric colorimeters. EVANS ELECTROSELENIUM,Ltd., and EVANS, A. E. June 19, 1945, No. 15571. [Class 40 (iii)] [Also in Group XX] A colorimeter comprises a container built up from rectangular slabs 7, 8, 9, Fig. 5, having a light source 2 at one end, a photo-electric cell 3 at the other end, a filter 5 and adjustable diaphragm 4 between them and a recess for the reception of a test tube 6 containing fluid. In use, a test tube of water and a filter of colour complementary to that of the fluid to be tested are inserted, and the diaphragm adjusted to give a full scale reading on a meter. A standard solution then replaces the water to give a meter reading for comparison with the reading when the test fluid is substituted for the standard solution. The diaphragm preferably consists of two plates 4, Fig. 6, urged together by springs 15 bearing on stud 19, and pressed apart by bell crank levers 16 pivoted at 18 and adjusted by plate 20. The light source 2 may be mounted at right angles to the axis and its housing be common to several containers.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB594497A true GB594497A (en) | 1947-11-12 |
Family
ID=1731611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1557145A Expired GB594497A (en) | 1945-06-19 | Improvements in or relating to colorimeters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB594497A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2898802A (en) * | 1956-01-24 | 1959-08-11 | Ljungberg Lars Rune | Photoelectric colorimeter |
| US3035481A (en) * | 1958-08-11 | 1962-05-22 | Research Corp | Cuvette oximeter |
-
1945
- 1945-06-19 GB GB1557145A patent/GB594497A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2898802A (en) * | 1956-01-24 | 1959-08-11 | Ljungberg Lars Rune | Photoelectric colorimeter |
| US3035481A (en) * | 1958-08-11 | 1962-05-22 | Research Corp | Cuvette oximeter |
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