GB696675A - Improvements in and relating to methods of, and apparatus for, determining the concentration of particulate matter contained in liquid suspensions or colloidal solutionsor of solutes in true solutions - Google Patents
Improvements in and relating to methods of, and apparatus for, determining the concentration of particulate matter contained in liquid suspensions or colloidal solutionsor of solutes in true solutionsInfo
- Publication number
- GB696675A GB696675A GB4125/50A GB412550A GB696675A GB 696675 A GB696675 A GB 696675A GB 4125/50 A GB4125/50 A GB 4125/50A GB 412550 A GB412550 A GB 412550A GB 696675 A GB696675 A GB 696675A
- Authority
- GB
- United Kingdom
- Prior art keywords
- photo
- concentration
- lamp
- liquid
- tube
- 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
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
Abstract
696,675. Measuring radiation photo-electrically. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 16, 1951 [Feb. 17, 1950], No. 4125/50. Class 40 (iii). The particle concentration in a liquid, or the concentration of a solution is determined by projecting a beam of light into the fluid and measuring the intensity of the fluorescence produced. As shown, ultra-violet rays from a lamp 4 mounted in a chimney 5 pass through a filter 8 and collimating lens 9 into a vessel 1 containing the liquid under test. The liquid enters through an inlet 2 and leaves through an outlet 3 large enough to keep the liquid level substantially constant. At one side of the vessel is a photo multiplier tube 10 which receives the fluorescence through a window 11. A stop (not shown) is provided to cut out radiations reflected from impurities in the bottle and a filter 12 cuts out reflected primary radiations. Indicating and/or recording apparatus may be permanently connected to the photo-sensitive element or may be connected at will or automatically at predetermined intervals. For testing purposes a lamp 13 lit by a transformer and barretter lamp may be mounted to one side of the tube and provided with filters to illuminate the photo-tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4125/50A GB696675A (en) | 1950-02-17 | 1950-02-17 | Improvements in and relating to methods of, and apparatus for, determining the concentration of particulate matter contained in liquid suspensions or colloidal solutionsor of solutes in true solutions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4125/50A GB696675A (en) | 1950-02-17 | 1950-02-17 | Improvements in and relating to methods of, and apparatus for, determining the concentration of particulate matter contained in liquid suspensions or colloidal solutionsor of solutes in true solutions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB696675A true GB696675A (en) | 1953-09-09 |
Family
ID=9771213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4125/50A Expired GB696675A (en) | 1950-02-17 | 1950-02-17 | Improvements in and relating to methods of, and apparatus for, determining the concentration of particulate matter contained in liquid suspensions or colloidal solutionsor of solutes in true solutions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB696675A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3065665A (en) * | 1958-10-30 | 1962-11-27 | Courtaulds Ltd | Nephelometers |
| US4039259A (en) * | 1974-11-18 | 1977-08-02 | Kewpie Kabushiki Kaisha | Egg inspecting apparatus |
| EP0426829A1 (en) * | 1989-05-26 | 1991-05-15 | Univ Leland Stanford Junior | High sensitivity fluorescent single particle and single molecule detection apparatus and method. |
| CN114018771A (en) * | 2021-10-29 | 2022-02-08 | 中车青岛四方机车车辆股份有限公司 | Method for detecting liquid particles in indoor flow field |
-
1950
- 1950-02-17 GB GB4125/50A patent/GB696675A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3065665A (en) * | 1958-10-30 | 1962-11-27 | Courtaulds Ltd | Nephelometers |
| US4039259A (en) * | 1974-11-18 | 1977-08-02 | Kewpie Kabushiki Kaisha | Egg inspecting apparatus |
| EP0426829A1 (en) * | 1989-05-26 | 1991-05-15 | Univ Leland Stanford Junior | High sensitivity fluorescent single particle and single molecule detection apparatus and method. |
| EP0426829A4 (en) * | 1989-05-26 | 1992-05-06 | The Board Of Trustees Of The Leland Stanford Junior University | High sensitivity fluorescent single particle and single molecule detection apparatus and method |
| CN114018771A (en) * | 2021-10-29 | 2022-02-08 | 中车青岛四方机车车辆股份有限公司 | Method for detecting liquid particles in indoor flow field |
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