NO303888B1 - Selvrensende induktiv konduktivitetssensor - Google Patents
Selvrensende induktiv konduktivitetssensor Download PDFInfo
- Publication number
- NO303888B1 NO303888B1 NO922909A NO922909A NO303888B1 NO 303888 B1 NO303888 B1 NO 303888B1 NO 922909 A NO922909 A NO 922909A NO 922909 A NO922909 A NO 922909A NO 303888 B1 NO303888 B1 NO 303888B1
- Authority
- NO
- Norway
- Prior art keywords
- transducer
- liquid
- elastic membrane
- conductivity
- membrane
- Prior art date
Links
- 230000001939 inductive effect Effects 0.000 title claims description 15
- 238000004140 cleaning Methods 0.000 title claims description 14
- 239000012528 membrane Substances 0.000 claims description 48
- 239000007788 liquid Substances 0.000 claims description 39
- 239000012530 fluid Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 11
- 230000005291 magnetic effect Effects 0.000 claims description 9
- 238000007654 immersion Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- 239000003302 ferromagnetic material Substances 0.000 claims 2
- 239000000463 material Substances 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 239000002174 Styrene-butadiene Substances 0.000 description 2
- 230000003373 anti-fouling effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- LULCPJWUGUVEFU-UHFFFAOYSA-N Phthiocol Natural products C1=CC=C2C(=O)C(C)=C(O)C(=O)C2=C1 LULCPJWUGUVEFU-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/22—Measuring resistance of fluids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/023—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Health & Medical Sciences (AREA)
- Electrochemistry (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/469,200 US5077525A (en) | 1990-01-24 | 1990-01-24 | Electrodeless conductivity sensor with inflatable surface |
| PCT/US1991/000400 WO1991011708A1 (en) | 1990-01-24 | 1991-01-22 | Electrodeless conductivity sensor with inflatable surface |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO922909D0 NO922909D0 (no) | 1992-07-22 |
| NO922909L NO922909L (no) | 1992-07-22 |
| NO303888B1 true NO303888B1 (no) | 1998-09-14 |
Family
ID=23862856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO922909A NO303888B1 (no) | 1990-01-24 | 1992-07-22 | Selvrensende induktiv konduktivitetssensor |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5077525A (da) |
| EP (1) | EP0512025B1 (da) |
| JP (1) | JPH05503778A (da) |
| AU (1) | AU643755B2 (da) |
| CA (1) | CA2069752A1 (da) |
| DE (1) | DE69118365T2 (da) |
| DK (1) | DK0512025T3 (da) |
| ES (1) | ES2084810T3 (da) |
| FI (1) | FI100363B (da) |
| NO (1) | NO303888B1 (da) |
| WO (1) | WO1991011708A1 (da) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5361030A (en) * | 1990-10-22 | 1994-11-01 | Horiba, Ltd. | Leak detector for electro-magnetic induction-type conductivity meter |
| JP2589593B2 (ja) * | 1990-10-22 | 1997-03-12 | 株式会社堀場製作所 | 電磁誘導式導電率計 |
| ES2070678B1 (es) * | 1992-07-31 | 1997-02-01 | Univ Madrid Complutense | Metodo de determinacion de la conductividad de discos a partir de la medida de la susceptibilidad magnetica. |
| DE4416892C2 (de) * | 1994-05-13 | 1998-07-02 | Conducta Endress & Hauser | Sensor zur Messung der Leitfähigkeit flüssiger Medien |
| DE19823836C2 (de) * | 1998-05-28 | 2000-05-04 | Fresenius Medical Care De Gmbh | Vorrichtung und Verfahren zum berührungsfreien Messen der Leitfähigkeit einer in einem Strömungskanal befindlichen Flüssigkeit |
| US6359449B1 (en) | 1999-06-29 | 2002-03-19 | Intellectual Property Llc | Single coil conductance measuring apparatus |
| US6480009B1 (en) * | 1999-11-11 | 2002-11-12 | Gl&V/ Dorr-Oliver Inc. | Solids measurement system |
| DE10045583B4 (de) * | 2000-09-15 | 2013-07-25 | Knick Elektronische Messgeräte GmbH & Co. KG | Induktive Leitfähigkeitsmeßzelle |
| US6414493B1 (en) * | 2001-03-26 | 2002-07-02 | Rosemount Analytical Inc. | Toroid conductivity sensor |
| US6471106B1 (en) | 2001-11-15 | 2002-10-29 | Intellectual Property Llc | Apparatus and method for restricting the discharge of fasteners from a tool |
| US20040140812A1 (en) * | 2003-01-21 | 2004-07-22 | Ademir Scallante | Arrangements containing electrical assemblies and methods of cleaning such electrical assemblies |
| US6892143B2 (en) * | 2003-05-22 | 2005-05-10 | Ecolab Inc. | Controlling chemical dispense operations based on conductivity offset |
| US7071684B2 (en) * | 2003-07-25 | 2006-07-04 | Red Ko Volodymyr | Method of non-contact measuring electrical conductivity of electrolytes with using primary measuring transformer |
| UA60954C2 (en) * | 2003-07-25 | 2006-03-15 | Subsidiary Entpr With Foreign | Method for measuring conductivity of electrolyte by a contactless measuring transducer |
| US7078909B2 (en) * | 2003-12-12 | 2006-07-18 | Rosemount Analytical Inc. | Flow-through conductivity sensor |
| US7569193B2 (en) | 2003-12-19 | 2009-08-04 | Applied Materials, Inc. | Apparatus and method for controlled combustion of gaseous pollutants |
| US7736599B2 (en) | 2004-11-12 | 2010-06-15 | Applied Materials, Inc. | Reactor design to reduce particle deposition during process abatement |
| US7279903B2 (en) * | 2005-05-02 | 2007-10-09 | Invensys Systems, Inc. | Non-metallic flow-through electrodeless conductivity sensor with leak and temperature detection |
| US7126343B1 (en) * | 2005-07-27 | 2006-10-24 | Ecolab Inc. | Conductivity probe with toroid keeper |
| JP5102217B2 (ja) | 2005-10-31 | 2012-12-19 | アプライド マテリアルズ インコーポレイテッド | プロセス削減反応器 |
| US7814786B2 (en) * | 2007-01-17 | 2010-10-19 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Wireless sensing system for non-invasive monitoring of attributes of contents in a container |
| US20090007642A1 (en) * | 2007-07-05 | 2009-01-08 | Baxter International Inc. | Dialysis fluid measurement method and apparatus using conductive contacts |
| US8287724B2 (en) * | 2007-07-05 | 2012-10-16 | Baxter International Inc. | Dialysis fluid measurement systems using conductive contacts |
| DE102015108613A1 (de) * | 2015-06-01 | 2016-12-01 | Endress+Hauser Conducta Gmbh+Co. Kg | Induktiver Leitfähigkeitssensor und Verfahren zu dessen Herstellung |
| US10416107B2 (en) | 2016-08-19 | 2019-09-17 | Ecolab Usa Inc. | Conductivity sensor with void correction |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2271760A (en) * | 1939-07-19 | 1942-02-03 | Goodrich Co B F | Apparatus for preventing the accumulation of ice |
| US2375146A (en) * | 1941-10-09 | 1945-05-01 | Goodrich Co B F | Protective means |
| US2560287A (en) * | 1944-09-19 | 1951-07-10 | Goodrich Co B F | Protective covering to prevent ice accumulations |
| US2567804A (en) * | 1945-12-03 | 1951-09-11 | Goodrich Co B F | Means for preventing the accumulation of ice on aircraft surfaces and the like |
| US2542057A (en) * | 1948-05-06 | 1951-02-20 | Matthew J Relis | Method and apparatus for measuring the conductivity of an electrolyte |
| GB776861A (en) * | 1953-12-03 | 1957-06-12 | Gkn Group Services Ltd | Improvements relating to methods of and means for measuring current density |
| US3603873A (en) * | 1970-01-14 | 1971-09-07 | Nus Corp | Conductivity sensor |
| US3930493A (en) * | 1974-01-23 | 1976-01-06 | Cordis Corporation | Intravascular liquid velocity sensing method using a polarographic electrode |
| US4100491A (en) * | 1977-02-28 | 1978-07-11 | Southwest Research Institute | Automatic self-cleaning ferromagnetic metal detector |
| US4220920A (en) * | 1979-03-28 | 1980-09-02 | The Foxboro Company | Electrodeless conductivity measuring system |
| US4595442A (en) * | 1980-08-29 | 1986-06-17 | The B. F. Goodrich Company | Method of making a pneumatic deicer by vacuum pressing utilizing a curable rubber-cross-linked rubber composition |
| FR2528384A1 (fr) * | 1982-06-09 | 1983-12-16 | Snecma | Dispositif pour detecter et empecher la formation de glace sur des surfaces profilees |
| US4845494A (en) * | 1984-05-01 | 1989-07-04 | Comdisco Resources, Inc. | Method and apparatus using casing and tubing for transmitting data up a well |
| US4779823A (en) * | 1984-12-03 | 1988-10-25 | The B. F. Goodrich Company | Pneumatic deicer |
| US4706911A (en) * | 1986-01-27 | 1987-11-17 | Briscoe James A | Method and apparatus for deicing a leading edge |
| US4836474A (en) * | 1987-07-16 | 1989-06-06 | The B. F. Goodrich Company | De-icer |
-
1990
- 1990-01-24 US US07/469,200 patent/US5077525A/en not_active Expired - Lifetime
-
1991
- 1991-01-22 JP JP3503606A patent/JPH05503778A/ja active Pending
- 1991-01-22 AU AU72205/91A patent/AU643755B2/en not_active Ceased
- 1991-01-22 EP EP91903544A patent/EP0512025B1/en not_active Expired - Lifetime
- 1991-01-22 ES ES91903544T patent/ES2084810T3/es not_active Expired - Lifetime
- 1991-01-22 WO PCT/US1991/000400 patent/WO1991011708A1/en active IP Right Grant
- 1991-01-22 CA CA002069752A patent/CA2069752A1/en not_active Abandoned
- 1991-01-22 DE DE69118365T patent/DE69118365T2/de not_active Expired - Fee Related
- 1991-01-22 DK DK91903544.4T patent/DK0512025T3/da active
-
1992
- 1992-07-09 FI FI923171A patent/FI100363B/fi active
- 1992-07-22 NO NO922909A patent/NO303888B1/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK0512025T3 (da) | 1996-08-05 |
| DE69118365D1 (de) | 1996-05-02 |
| FI923171A0 (fi) | 1992-07-09 |
| NO922909D0 (no) | 1992-07-22 |
| AU643755B2 (en) | 1993-11-25 |
| JPH05503778A (ja) | 1993-06-17 |
| DE69118365T2 (de) | 1996-11-07 |
| ES2084810T3 (es) | 1996-05-16 |
| EP0512025A1 (en) | 1992-11-11 |
| NO922909L (no) | 1992-07-22 |
| US5077525A (en) | 1991-12-31 |
| FI923171A (fi) | 1992-07-09 |
| WO1991011708A1 (en) | 1991-08-08 |
| EP0512025A4 (en) | 1993-05-12 |
| EP0512025B1 (en) | 1996-03-27 |
| AU7220591A (en) | 1991-08-21 |
| CA2069752A1 (en) | 1991-07-25 |
| FI100363B (fi) | 1997-11-14 |
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