GB1013874A - Improvements in apparatus for determining the turbidity of fluids - Google Patents
Improvements in apparatus for determining the turbidity of fluidsInfo
- Publication number
- GB1013874A GB1013874A GB2632563A GB2632563A GB1013874A GB 1013874 A GB1013874 A GB 1013874A GB 2632563 A GB2632563 A GB 2632563A GB 2632563 A GB2632563 A GB 2632563A GB 1013874 A GB1013874 A GB 1013874A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cell
- light
- photo
- turbidity
- fluid
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/51—Scattering, i.e. diffuse reflection within a body or fluid inside a container, e.g. in an ampoule
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
1,013,874. Photo-electric determination of turbidity. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 3, 1964 [July 3, 1963], No. 26325/63. Heading G1A. Determination of the turbidity of a fluid is carried out using apparatus comprising a casing 12 in which are mounted a photo-cell 17 and means for directing a light beam into a sample cell 11, these being movable relatively to each other so that in one relative position the photo-cell receives light transmitted through a fluid in the sample cell from the light-directing means and in the other, light scattered by particles in the fluid. The light source 13 and condenser system 15 are mounted in a side tube 14, which may be wholly enclosed in the casing in a more portable version of the apparatus. The cell 17 which may be photoemissive, -conductive, or -voltaic, is mounted on a turntable 18, which is rotated by a knob 21, and may, in another embodiment (Fig. 3, not shown), move inside the sample cell. In operation, the photo-cell is first arranged to receive transmitted light, and the rheostat 30 is adjusted to give a full scale deflection on microammeter 31. The resistor 28 reduces the current to the same proportions as that obtained from the cell when receiving scattered light. The turning of the knob 21 to bring the cell into this position, also short circuits the resistor 28. The reading obtained for scattered light is compared with that for transmitted and the turbidity obtained by reference to known graphs &c. A meter already calibrated in solids content may be used. The sensitivity rheostat 30 may, if desired, be in the source supply circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2632563A GB1013874A (en) | 1963-07-03 | 1963-07-03 | Improvements in apparatus for determining the turbidity of fluids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2632563A GB1013874A (en) | 1963-07-03 | 1963-07-03 | Improvements in apparatus for determining the turbidity of fluids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1013874A true GB1013874A (en) | 1965-12-22 |
Family
ID=10241884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2632563A Expired GB1013874A (en) | 1963-07-03 | 1963-07-03 | Improvements in apparatus for determining the turbidity of fluids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1013874A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8355132B2 (en) | 2007-04-06 | 2013-01-15 | Qiagen Gaithersburg, Inc. | Sample adequacy measurement system having a plurality of sample tubes and using turbidity light scattering techniques |
| US8877507B2 (en) | 2007-04-06 | 2014-11-04 | Qiagen Gaithersburg, Inc. | Ensuring sample adequacy using turbidity light scattering techniques |
| US9476895B2 (en) | 2007-04-06 | 2016-10-25 | Becton, Dickinson And Company | Open platform automated sample processing system |
| CN112268876A (en) * | 2020-10-14 | 2021-01-26 | 天津优可信科技有限公司 | Water quality detection unit and water quality detector |
-
1963
- 1963-07-03 GB GB2632563A patent/GB1013874A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8355132B2 (en) | 2007-04-06 | 2013-01-15 | Qiagen Gaithersburg, Inc. | Sample adequacy measurement system having a plurality of sample tubes and using turbidity light scattering techniques |
| US8877507B2 (en) | 2007-04-06 | 2014-11-04 | Qiagen Gaithersburg, Inc. | Ensuring sample adequacy using turbidity light scattering techniques |
| US9476895B2 (en) | 2007-04-06 | 2016-10-25 | Becton, Dickinson And Company | Open platform automated sample processing system |
| CN112268876A (en) * | 2020-10-14 | 2021-01-26 | 天津优可信科技有限公司 | Water quality detection unit and water quality detector |
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