CA1120288A - Electronic control for paper stock freeness tester - Google Patents
Electronic control for paper stock freeness testerInfo
- Publication number
- CA1120288A CA1120288A CA000307128A CA307128A CA1120288A CA 1120288 A CA1120288 A CA 1120288A CA 000307128 A CA000307128 A CA 000307128A CA 307128 A CA307128 A CA 307128A CA 1120288 A CA1120288 A CA 1120288A
- Authority
- CA
- Canada
- Prior art keywords
- freeness
- filtrate
- probe
- signal
- paper stock
- 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
- 239000000706 filtrate Substances 0.000 claims abstract description 61
- 238000005259 measurement Methods 0.000 claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 230000004044 response Effects 0.000 claims abstract description 8
- 239000000523 sample Substances 0.000 claims description 67
- 230000005669 field effect Effects 0.000 claims description 18
- 239000003990 capacitor Substances 0.000 claims description 12
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000006872 improvement Effects 0.000 claims description 2
- 238000004886 process control Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000005070 sampling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000013256 coordination polymer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 241000202567 Fatsia japonica Species 0.000 description 1
- 208000003251 Pruritus Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Paper (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US81490477A | 1977-07-12 | 1977-07-12 | |
| US814,904 | 1977-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1120288A true CA1120288A (en) | 1982-03-23 |
Family
ID=25216310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000307128A Expired CA1120288A (en) | 1977-07-12 | 1978-07-11 | Electronic control for paper stock freeness tester |
Country Status (8)
| Country | Link |
|---|---|
| AU (1) | AU522852B2 (de) |
| CA (1) | CA1120288A (de) |
| DE (1) | DE2830553A1 (de) |
| FI (1) | FI782232A (de) |
| FR (1) | FR2397487A1 (de) |
| GB (1) | GB2001117A (de) |
| IT (1) | IT1097206B (de) |
| SE (1) | SE7807737L (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3215306C2 (de) * | 1982-04-23 | 1984-06-28 | Ukrainskoe naučno-proizvodstvennoe ob"edinenie celljulozno-bumažnoj promyšlennosti "UKRNPOBUMPROM", Kiev | Einrichtung zur Bestimmung und Registrierung des Mahlgrades von Faserstoffen |
| DE3701662A1 (de) * | 1987-01-21 | 1988-08-04 | Ts Kt Bjuro Priborostroenija S | Einrichtung zur bestimmung der filtrierfaehigkeit von papierbrei |
| FI80342C (fi) * | 1988-02-02 | 1990-05-10 | Lehtikoski Dev Oy | Foerfarande foer automatisk maetning av massasuspensions torrsubstans, filtreringfoermaoga och viraretention. |
| FI104855B (fi) * | 1998-07-07 | 2000-04-14 | Valmet Automation Inc | Menetelmä ja mittalaite suotautuvuuden mittaamiseksi |
| US6523395B1 (en) | 1998-07-07 | 2003-02-25 | Metso Automation Oy | Method and measuring apparatus for measuring freeness |
-
1978
- 1978-07-10 AU AU37904/78A patent/AU522852B2/en not_active Expired
- 1978-07-11 CA CA000307128A patent/CA1120288A/en not_active Expired
- 1978-07-11 SE SE7807737A patent/SE7807737L/xx unknown
- 1978-07-11 GB GB7829486A patent/GB2001117A/en not_active Withdrawn
- 1978-07-12 FR FR7820790A patent/FR2397487A1/fr not_active Withdrawn
- 1978-07-12 DE DE19782830553 patent/DE2830553A1/de active Pending
- 1978-07-12 FI FI782232A patent/FI782232A/fi not_active Application Discontinuation
- 1978-07-12 IT IT25623/78A patent/IT1097206B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| DE2830553A1 (de) | 1979-02-01 |
| AU522852B2 (en) | 1982-07-01 |
| GB2001117A (en) | 1979-01-24 |
| FR2397487A1 (fr) | 1979-02-09 |
| SE7807737L (sv) | 1979-01-13 |
| IT1097206B (it) | 1985-08-26 |
| FI782232A (fi) | 1979-01-13 |
| AU3790478A (en) | 1980-01-17 |
| IT7825623A0 (it) | 1978-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |