GB1248738A - Method and apparatus for determining the presence and/or concentration of predetermined particulate material in liquid - Google Patents
Method and apparatus for determining the presence and/or concentration of predetermined particulate material in liquidInfo
- Publication number
- GB1248738A GB1248738A GB2174468A GB2174468A GB1248738A GB 1248738 A GB1248738 A GB 1248738A GB 2174468 A GB2174468 A GB 2174468A GB 2174468 A GB2174468 A GB 2174468A GB 1248738 A GB1248738 A GB 1248738A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- radiation
- liquid
- solid particles
- oil
- 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
- 239000007788 liquid Substances 0.000 title abstract 4
- 239000011236 particulate material Substances 0.000 title abstract 2
- 239000002245 particle Substances 0.000 abstract 7
- 230000005855 radiation Effects 0.000 abstract 6
- 239000007787 solid Substances 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000003921 oil Substances 0.000 abstract 2
- 230000003595 spectral effect Effects 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 230000001678 irradiating effect Effects 0.000 abstract 1
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002923 metal particle Substances 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 230000002285 radioactive effect Effects 0.000 abstract 1
- 239000012857 radioactive material Substances 0.000 abstract 1
- 239000000941 radioactive substance Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 229910052716 thallium Inorganic materials 0.000 abstract 1
- -1 thallium-activated sodium iodide Chemical class 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
- G01N15/0618—Investigating concentration of particle suspensions by collecting particles on a support of the filter type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/223—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/07—Investigating materials by wave or particle radiation secondary emission
- G01N2223/076—X-ray fluorescence
Landscapes
- Chemical & Material Sciences (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)
- Dispersion Chemistry (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
1,248,738. Monitoring metal particles in liquids. ROLLS-ROYCE Ltd. 7 May, 1969 [8 May, 1968], No. 21744/68. Heading B1D. [Also in Division G1] The presence and/or concentration of a particulate material in a liquid is determined by first separating any such material from the liquid and then irradiating it using a radioactive source and measuring the emitted radiation stimulated by this irradiation. The invention is described with reference to the determination of solid particles in lubricating oil (e.g. steel particles from bearing balls, rollers or track or phosphor-ibronze particles from the cage), but is applicable also to the determination of gold particles in water. In the apparatus of Fig. 1, oil is directed from inlet pipe 14 tangentially onto a cylindrical filter element 11 e.g. of paper, supported by disc 12 and rod 13. Oil passes through and out via pipe 15. Solid particles drop and are guided by baffle 21, through a trough 20 whose boundary is surrounded by a ring 17 of X-ray emitting radioactive material which causes the particles to emit characteristic X- radiation. A particular characteristic spectral line e.g. that of iron is investigated by the use of a pair of detectors 22, 23 (of the scintillation counter-type using thallium-activated sodium iodide crystals provided with respective radiation filters, one adapted to pass radiation of energies up to just below the characteristic spectral line of interest and the other to just above. Subtraction of the counts obtained at 32 provides an indication of the presence or quantity of the element and can operate an alarm 35 if a predetermined quantity is exceeded. In alternative arrangements, one detector with two radiation filters, carried on a rotatable mount and used sequentially, may be used; three radiation filters may be used to investigate two elements; the ring 17 may be substituted by a coarse mesh of radioactive substance. Means may be provided to knock the solid particles off the filter element e.g. the vibrations provided by a gear pump connected to the outlet 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2174468A GB1248738A (en) | 1968-05-08 | 1968-05-08 | Method and apparatus for determining the presence and/or concentration of predetermined particulate material in liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2174468A GB1248738A (en) | 1968-05-08 | 1968-05-08 | Method and apparatus for determining the presence and/or concentration of predetermined particulate material in liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1248738A true GB1248738A (en) | 1971-10-06 |
Family
ID=10168063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2174468A Expired GB1248738A (en) | 1968-05-08 | 1968-05-08 | Method and apparatus for determining the presence and/or concentration of predetermined particulate material in liquid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1248738A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2196113A (en) * | 1986-09-12 | 1988-04-20 | Nat Res Dev | Ore analysis |
| CN107505241A (en) * | 2017-07-24 | 2017-12-22 | 江苏中聚检测服务有限公司 | A kind of strong dust sampler for being applied to the measurement of multiple periods of alarm capabilities |
-
1968
- 1968-05-08 GB GB2174468A patent/GB1248738A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2196113A (en) * | 1986-09-12 | 1988-04-20 | Nat Res Dev | Ore analysis |
| GB2196113B (en) * | 1986-09-12 | 1990-12-12 | Nat Res Dev | Ore analysis |
| US5020084A (en) * | 1986-09-12 | 1991-05-28 | National Research Development Corporation | Ore analysis |
| CN107505241A (en) * | 2017-07-24 | 2017-12-22 | 江苏中聚检测服务有限公司 | A kind of strong dust sampler for being applied to the measurement of multiple periods of alarm capabilities |
| CN107505241B (en) * | 2017-07-24 | 2019-12-03 | 江苏中聚检测服务有限公司 | A kind of dust sampler for being suitable for the measurement of multiple periods that alarm capabilities are strong |
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