GB1069680A - Photo-scanning method and apparatus for direct measurement of particle size distribution of powder - Google Patents
Photo-scanning method and apparatus for direct measurement of particle size distribution of powderInfo
- Publication number
- GB1069680A GB1069680A GB3426464A GB3426464A GB1069680A GB 1069680 A GB1069680 A GB 1069680A GB 3426464 A GB3426464 A GB 3426464A GB 3426464 A GB3426464 A GB 3426464A GB 1069680 A GB1069680 A GB 1069680A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particle size
- size distribution
- photo
- powder
- scan
- 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
- 239000002245 particle Substances 0.000 title abstract 5
- 239000000843 powder Substances 0.000 title abstract 2
- 238000005259 measurement Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000000725 suspension Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/04—Investigating sedimentation of particle suspensions
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth 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, 069, 680. Particle size distribution determination. HITACHI SEISAKUSHO KABUSHIKI KAISHA. Aug.21, 1964, No.34264/64. Heading G1A. To determine the particle size distribution of a powder the particles are suspended in a liquid and what is initially a homogeneous suspension 2 placed in a parallel-sided transparent-walled cell 2. At a time t after sedimentation has begun the suspension is scanned in the depth direction by a light source 3 and lens combination producing a thin beam of parallel light which is directed through the sample to photo-detector 4. From the scan is derived a photo-electric output voltage I and at each instant of the scan an equivalent voltage h from potentiometer circuit 5 representing the corresponding depth. The factors I, h and l are fed to computing circuits which determine and plot the particle size distribution curve. A mathematical explanation based on Stoke's Law, of two ways in which the computation may be performed is given.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3426464A GB1069680A (en) | 1964-08-21 | 1964-08-21 | Photo-scanning method and apparatus for direct measurement of particle size distribution of powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3426464A GB1069680A (en) | 1964-08-21 | 1964-08-21 | Photo-scanning method and apparatus for direct measurement of particle size distribution of powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1069680A true GB1069680A (en) | 1967-05-24 |
Family
ID=10363481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3426464A Expired GB1069680A (en) | 1964-08-21 | 1964-08-21 | Photo-scanning method and apparatus for direct measurement of particle size distribution of powder |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1069680A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0645615A1 (en) * | 1992-08-05 | 1995-03-29 | Aktsionernoe Obschestvo "Agrokhim-Biznes" | Photoelectric method for sedimentational analysis of homogeneous dispersed systems |
| RU2516390C1 (en) * | 2012-11-30 | 2014-05-20 | Максим Равильевич Сытдыков | Method of determining distribution of particle mass of extinguishing agent in unsteady gas flow |
-
1964
- 1964-08-21 GB GB3426464A patent/GB1069680A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5452602A (en) * | 1992-05-09 | 1995-09-26 | Aktsionernoe Obschestvo "Agrokhim-Biznes" | Photoelectric method of sedimentation analysis of dispersion systems of homogeneous substance |
| EP0645615A1 (en) * | 1992-08-05 | 1995-03-29 | Aktsionernoe Obschestvo "Agrokhim-Biznes" | Photoelectric method for sedimentational analysis of homogeneous dispersed systems |
| EP0645615A4 (en) * | 1992-08-05 | 1995-04-26 | Aktsionernoe Obschestvo "Agrokhim-Biznes" | Photoelectric method for sedimentational analysis of homogeneous dispersed systems. |
| RU2516390C1 (en) * | 2012-11-30 | 2014-05-20 | Максим Равильевич Сытдыков | Method of determining distribution of particle mass of extinguishing agent in unsteady gas flow |
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