WO2014096552A1 - Measurement of particles in suspension - Google Patents
Measurement of particles in suspension Download PDFInfo
- Publication number
- WO2014096552A1 WO2014096552A1 PCT/FI2013/051197 FI2013051197W WO2014096552A1 WO 2014096552 A1 WO2014096552 A1 WO 2014096552A1 FI 2013051197 W FI2013051197 W FI 2013051197W WO 2014096552 A1 WO2014096552 A1 WO 2014096552A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical
- optical radiation
- measurement chamber
- micro
- particles
- Prior art date
Links
- 239000002245 particle Substances 0.000 title claims abstract description 79
- 239000000725 suspension Substances 0.000 title claims abstract description 34
- 238000005259 measurement Methods 0.000 title claims description 73
- 230000003287 optical effect Effects 0.000 claims abstract description 158
- 230000005855 radiation Effects 0.000 claims abstract description 80
- 238000007906 compression Methods 0.000 claims abstract description 58
- 230000003595 spectral effect Effects 0.000 claims description 17
- 230000008859 change Effects 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 7
- 239000000306 component Substances 0.000 claims 13
- 239000000835 fiber Substances 0.000 description 26
- 238000005286 illumination Methods 0.000 description 8
- 210000000695 crystalline len Anatomy 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 3
- 238000004040 coloring Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229920000995 Spectralon Polymers 0.000 description 2
- 229920002522 Wood fibre Polymers 0.000 description 2
- 206010061592 cardiac fibrillation Diseases 0.000 description 2
- 230000002600 fibrillogenic effect Effects 0.000 description 2
- 238000010191 image analysis Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000002025 wood fiber Substances 0.000 description 2
- PFNQVRZLDWYSCW-UHFFFAOYSA-N (fluoren-9-ylideneamino) n-naphthalen-1-ylcarbamate Chemical compound C12=CC=CC=C2C2=CC=CC=C2C1=NOC(=O)NC1=CC=CC2=CC=CC=C12 PFNQVRZLDWYSCW-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000386 microscopy Methods 0.000 description 1
- XJCPMUIIBDVFDM-UHFFFAOYSA-M nile blue A Chemical compound [Cl-].C1=CC=C2C3=NC4=CC=C(N(CC)CC)C=C4[O+]=C3C=C(N)C2=C1 XJCPMUIIBDVFDM-UHFFFAOYSA-M 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 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
- G01N15/10—Investigating individual particles
- G01N15/14—Optical investigation techniques, e.g. flow cytometry
-
- 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
- G01N15/10—Investigating individual particles
- G01N15/14—Optical investigation techniques, e.g. flow cytometry
- G01N15/1434—Optical arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/34—Paper
- G01N33/343—Paper pulp
-
- 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
- G01N2015/0042—Investigating dispersion of solids
- G01N2015/0053—Investigating dispersion of solids in liquids, e.g. trouble
Definitions
- Figure 2 shows an example of a measurement chamber
- Figure 3A shows an example of a distance adjustment of the background component
- the optical background component 106 may be self-radiating by generating optical radiation itself.
- the optical background component 106 may direct the generated optical radiation towards the measurement chamber 100.
- the optical background component 106 may comprise at least one lamp, led, laser or a similar source 350, 352, 354 for generating optical radiation. Different sources 350, 352, 354 may output the same band or different bands of optical radiation. The redirection of the optical radiation from the main source 104 may be combined with the generation of optical radiation.
- the optical power of the sources 350, 352, 354 may be separately controlled by electrical power sources 356, 358, 360 under control of the processor 1 10 for controlling intensity of the background radiation and/or the spectral distribution of the background optical power.
- a suitable background intensity facilitates color separation.
- a suitable background spectral distribution also facilitates color separation.
- Figure 5A shows an example of a measuring method based on the spectral property.
- the vertical axis is magnitude and the horizontal axis is value which refers here to darkness of the red. In a general case, a darkness i.e. value of any color may be measured.
- the histogram in Figure 5A has been calculated for image sets having more than 400 images.
- micro- compressions 402 can be seen below value from 0.7 which is a threshold between a color of a micro-compression and an area without micro-compression.
- the image processor 1 10 may form the micro-compression index on the basis of a ratio of different color intensities separated by a prede- termined threshold in a particle.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20126359 | 2012-12-21 | ||
| FI20126359A FI124654B (sv) | 2012-12-21 | 2012-12-21 | Mätning av partiklar i suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014096552A1 true WO2014096552A1 (en) | 2014-06-26 |
Family
ID=50977679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FI2013/051197 WO2014096552A1 (en) | 2012-12-21 | 2013-12-23 | Measurement of particles in suspension |
Country Status (2)
| Country | Link |
|---|---|
| FI (1) | FI124654B (sv) |
| WO (1) | WO2014096552A1 (sv) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181253A (zh) * | 2016-12-08 | 2018-06-19 | 维美德自动化有限公司 | 用于测量悬浮液的方法和测量装置 |
| WO2022195168A1 (en) * | 2021-03-18 | 2022-09-22 | Valmet Automation Oy | Measuring device and method |
| SE2251304A1 (en) * | 2021-11-12 | 2023-05-13 | Valmet Automation Oy | Measuring method and arrangement |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2095828A (en) * | 1981-03-31 | 1982-10-06 | Wool Dev Int | Detection of defects in fibrous arrays |
| US20050109950A1 (en) * | 2003-11-21 | 2005-05-26 | King Frederick D. | Automatic identification of suspended particles |
| WO2005068974A1 (en) * | 2004-01-20 | 2005-07-28 | Commonwealth Scientific And Industrial Research Organisation | Method and apparatus for testing fibres |
| WO2013030462A1 (en) * | 2011-09-02 | 2013-03-07 | Kemira Oyj | Device and method for characterizing solid matter present in liquids |
-
2012
- 2012-12-21 FI FI20126359A patent/FI124654B/sv not_active IP Right Cessation
-
2013
- 2013-12-23 WO PCT/FI2013/051197 patent/WO2014096552A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2095828A (en) * | 1981-03-31 | 1982-10-06 | Wool Dev Int | Detection of defects in fibrous arrays |
| US20050109950A1 (en) * | 2003-11-21 | 2005-05-26 | King Frederick D. | Automatic identification of suspended particles |
| WO2005068974A1 (en) * | 2004-01-20 | 2005-07-28 | Commonwealth Scientific And Industrial Research Organisation | Method and apparatus for testing fibres |
| WO2013030462A1 (en) * | 2011-09-02 | 2013-03-07 | Kemira Oyj | Device and method for characterizing solid matter present in liquids |
Non-Patent Citations (4)
| Title |
|---|
| IRINA RAUVANTO, THE EFFECT OF OXYGEN DELIGNIFICATION ON FIBER PROPERTIES IN KRAFT PULP PRODUCTION- A REVIEW, 2003, LAPPENRANTA, pages 16 * |
| IRINA RAUVANTO: "THE INTRINSIC MECHANISMS OF SOFTWOOD FIBER DAMAGE IN BROWN STOCK FIBER LINE UNIT OPERATIONS", THESIS FOR THE DEGREE OF DOCTOR OF SCIENCE ., pages 20, 26 * |
| LISBETH G. THYGESEN: "Quantification of dislocations in hemp fibers using acid hydrolysis and fiber segment length distributions", J MATER SCI, vol. 43, 2008, pages 1311 - 1317 * |
| NYHOLM K. ET AL.: "Dislocation in pulp fibres - their origin, characteristics and importance - a review", NORDIC PULP AND PAPER RESEARCH JOURNAL, vol. 16, 2001, pages 376 - 384 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181253A (zh) * | 2016-12-08 | 2018-06-19 | 维美德自动化有限公司 | 用于测量悬浮液的方法和测量装置 |
| CN108181253B (zh) * | 2016-12-08 | 2020-10-16 | 维美德自动化有限公司 | 用于测量悬浮液的方法和测量装置 |
| WO2022195168A1 (en) * | 2021-03-18 | 2022-09-22 | Valmet Automation Oy | Measuring device and method |
| SE2251304A1 (en) * | 2021-11-12 | 2023-05-13 | Valmet Automation Oy | Measuring method and arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| FI124654B (sv) | 2014-11-28 |
| FI20126359A (sv) | 2014-06-22 |
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