NO993674L - Kapasitiv nivafoler med optimalisert elektrodegeometri - Google Patents
Kapasitiv nivafoler med optimalisert elektrodegeometriInfo
- Publication number
- NO993674L NO993674L NO19993674A NO993674A NO993674L NO 993674 L NO993674 L NO 993674L NO 19993674 A NO19993674 A NO 19993674A NO 993674 A NO993674 A NO 993674A NO 993674 L NO993674 L NO 993674L
- Authority
- NO
- Norway
- Prior art keywords
- foils
- electrode geometry
- capacitive level
- optimized electrode
- optimized
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
- G01F23/266—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors measuring circuits therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
- G01F23/265—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors for discrete levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
- G01F23/268—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors mounting arrangements of probes
-
- 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
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2617—Measuring dielectric properties, e.g. constants
- G01R27/2635—Sample holders, electrodes or excitation arrangements, e.g. sensors or measuring cells
- G01R27/2676—Probes
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19704975 | 1997-01-28 | ||
DE19713267A DE19713267A1 (de) | 1997-01-28 | 1997-03-29 | Verfahren zur Bestimmung der Dielektrizitätskonstante und/oder der Leitfähigkeit mindestens eines Mediums sowie Vorrichtung zur Durchführung des Verfahrens |
PCT/CH1997/000483 WO1998033044A1 (de) | 1997-01-28 | 1997-12-24 | Kapazitiver füllstandssensor mit optimierter elektrodengeometrie |
Publications (3)
Publication Number | Publication Date |
---|---|
NO993674D0 NO993674D0 (no) | 1999-07-28 |
NO993674L true NO993674L (no) | 1999-09-28 |
NO324767B1 NO324767B1 (no) | 2007-12-10 |
Family
ID=26033807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO993674A NO324767B1 (no) | 1997-01-28 | 1999-07-28 | Kapasitiv nivåføler med optimalisert elektrodegeometri |
Country Status (6)
Country | Link |
---|---|
US (1) | US6318172B1 (no) |
EP (1) | EP0995083B1 (no) |
AU (1) | AU8076198A (no) |
BR (1) | BR9714537B1 (no) |
NO (1) | NO324767B1 (no) |
WO (1) | WO1998033044A1 (no) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19923901A1 (de) * | 1999-05-25 | 2000-11-30 | Abb Research Ltd | Verfahren und Mittel zur Zugabe von Emulsionsbrechern in einen Prozesstank |
US6423213B1 (en) * | 2000-07-28 | 2002-07-23 | Josam Company | Continuous level measurement for grease separator |
US6776900B2 (en) * | 2000-07-28 | 2004-08-17 | Josam Company | Level measurement for grease separators |
EP1184647B1 (de) * | 2000-08-28 | 2014-07-09 | Vetco Gray Scandinavia AS | Verfahren und Vorrichtung zur kombinierten kapazitiven und induktiven Füllstandmessung |
US6761067B1 (en) * | 2002-06-13 | 2004-07-13 | Environment One Corporation | Scanning capacitive array sensor and method |
US6935173B2 (en) | 2002-06-25 | 2005-08-30 | Maxima Technologies & Systems, Inc. | Liquid level sensing device |
US7201068B2 (en) * | 2003-06-30 | 2007-04-10 | The Boeing Company | Water cut meter for measurement of water in crude oil |
US6945122B2 (en) * | 2003-06-30 | 2005-09-20 | The Boeing Company | Water cut meter for measurement of water in crude oil-magnetic |
US6823271B1 (en) | 2003-06-30 | 2004-11-23 | The Boeing Company | Multi-phase flow meter for crude oil |
US6925398B2 (en) * | 2003-07-07 | 2005-08-02 | Colorado Vnet, Llc | Water measurement apparatus and methods |
WO2005031268A2 (de) * | 2003-09-18 | 2005-04-07 | Siemens Aktiengesellschaft | Messeinrichtung zur grenzwerterfassung |
WO2005060815A1 (de) * | 2003-12-22 | 2005-07-07 | BSH Bosch und Siemens Hausgeräte GmbH | Geschirrspülmaschine mit einem system zur füllstandserkennung |
WO2006031563A2 (en) * | 2004-09-10 | 2006-03-23 | E.I. Dupont De Nemours And Company | Method for detecting an interface between first and second strata of materials |
US20080297159A1 (en) * | 2004-09-10 | 2008-12-04 | Mehrdad Mehdizadeh | Sensing Apparatus for Detecting an Interface Between First and Second Strata of Materials |
WO2006031565A1 (en) * | 2004-09-10 | 2006-03-23 | E.I. Dupont De Nemours And Company | System for detecting an interface between first and second strata of materials |
CA2611321C (en) | 2005-06-08 | 2014-11-04 | Lumenite Control Technology Inc. | Self-calibrating liquid level transmitter |
CA2678726C (en) * | 2007-02-23 | 2014-08-19 | Warren Michael Levy | Fluid level sensing device and methods of using same |
CN100590397C (zh) * | 2007-10-10 | 2010-02-17 | 罗明 | 全工况连续测量锅炉汽包液位计及其液位计算方法 |
NL2001057C2 (nl) * | 2007-12-05 | 2009-06-08 | Fluid Well Instr B V | Meetinrichting en -werkwijze voor het lokaal meten van ten minste een elektrische eigenschap van de inhoud van de houder. |
WO2009089339A2 (en) * | 2008-01-09 | 2009-07-16 | Diraction, Llc | Automated phase separation and fuel quality sensor |
US20090198458A1 (en) * | 2008-01-29 | 2009-08-06 | Mcdermid John | Water measurement auto-networks |
US8281655B2 (en) * | 2009-04-03 | 2012-10-09 | Eaton Corporation | Fuel gauging system utilizing a digital fuel gauging probe |
GB0909510D0 (en) | 2009-06-03 | 2009-07-15 | Airbus Uk Ltd | Fuel level measurement apparatus and method |
US9360361B2 (en) * | 2012-09-27 | 2016-06-07 | Magnetrol International, Inc. | System and method for emulsion measurement and profiling |
CN103245394B (zh) * | 2013-03-29 | 2015-08-19 | 北京遥测技术研究所 | 一种基于多层环形电容结构的点式液位传感器 |
CN103791982B (zh) * | 2014-01-21 | 2016-07-27 | 北京遥测技术研究所 | 一种耗尽关机液位信号变换装置 |
US10236683B2 (en) * | 2016-06-10 | 2019-03-19 | Apple Inc. | Corrosion mitigation for an external connector of an electronic device |
DE102016120135B3 (de) * | 2016-10-21 | 2017-11-16 | Sick Ag | Sensor und Verfahren zur Störentkopplung |
US10935508B2 (en) * | 2017-08-28 | 2021-03-02 | Xiamen Eco Lighting Co. Ltd. | Liquid detection device and liquid detection system for abnormal liquid on a surface |
US10591430B2 (en) | 2017-09-08 | 2020-03-17 | Apple Inc. | Method and system for detecting moisture on a connector contact |
GB2571243A (en) * | 2017-12-12 | 2019-08-28 | Bdr Thermea Group B V | Level probe and sensor |
US11658443B2 (en) | 2021-04-13 | 2023-05-23 | Apple Inc. | Liquid detection and corrosion mitigation |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3644821A (en) * | 1969-01-14 | 1972-02-22 | Atomic Energy Commission | Capacitance method and apparatus for detecting an interface between electrically conductive immiscible liquids |
DE2819731C2 (de) | 1978-05-05 | 1982-08-12 | Vega Vertrieb und Fertigung elektronischer Geräte und Apparate Grieshaber KG, 7620 Wolfach | Anordnung zur kapazitiven Füllstandsmessung in einem Behälter |
GB8401221D0 (en) | 1984-01-17 | 1984-02-22 | Shell Int Research | Level gauge |
AT397718B (de) * | 1986-09-17 | 1994-06-27 | Avl Verbrennungskraft Messtech | Niveau-messgerät für elektrisch nicht leitende flüssigkeiten |
US4806847A (en) * | 1986-12-09 | 1989-02-21 | Caterpillar Inc. | Dielectric liquid level sensor and method |
DE3812687A1 (de) | 1988-04-16 | 1989-10-26 | Duerrwaechter E Dr Doduco | Kapazitiver sensor zum bestimmen des niveaus einer fluessigkeit in einem behaelter |
US5138880A (en) | 1991-05-29 | 1992-08-18 | Lee/Maatuk Engineering, Inc. | Digital level sensing probe system |
CH682845A5 (de) | 1991-10-15 | 1993-11-30 | Hectronic Ag | Kapazitive Niveaumess-Sonde sowie deren Verwendung. |
JPH05322629A (ja) * | 1992-05-25 | 1993-12-07 | Japan Aviation Electron Ind Ltd | 静電容量式レベルセンサ |
EP0711405B1 (en) * | 1993-07-30 | 1997-05-02 | Andrej Zatler | Self-adjusting capacitive level switch for a non-contact or contact sensing of media or objects |
US6138508A (en) * | 1993-10-27 | 2000-10-31 | Kdi Precision Products, Inc. | Digital liquid level sensing apparatus |
US6125696A (en) * | 1993-10-27 | 2000-10-03 | Kdi Precision Products, Inc. | Digital liquid level sensing apparatus |
DE19757190A1 (de) * | 1997-12-22 | 1999-06-24 | Abb Research Ltd | Kapazitiver Füllstandssensor mit integrierter Schmutzfilmdetektion |
-
1997
- 1997-12-24 EP EP97948673A patent/EP0995083B1/de not_active Expired - Lifetime
- 1997-12-24 US US09/341,798 patent/US6318172B1/en not_active Expired - Lifetime
- 1997-12-24 BR BRPI9714537-8A patent/BR9714537B1/pt not_active IP Right Cessation
- 1997-12-24 WO PCT/CH1997/000483 patent/WO1998033044A1/de active IP Right Grant
- 1997-12-24 AU AU80761/98A patent/AU8076198A/en not_active Abandoned
-
1999
- 1999-07-28 NO NO993674A patent/NO324767B1/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0995083A1 (de) | 2000-04-26 |
BR9714537B1 (pt) | 2009-05-05 |
AU8076198A (en) | 1998-08-18 |
BR9714537A (pt) | 2002-01-02 |
NO324767B1 (no) | 2007-12-10 |
NO993674D0 (no) | 1999-07-28 |
WO1998033044A1 (de) | 1998-07-30 |
EP0995083B1 (de) | 2002-02-20 |
US6318172B1 (en) | 2001-11-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CHAD | Change of the owner's name or address (par. 44 patent law, par. patentforskriften) |
Owner name: WAERTSILAE OIL & GAS SYSTEMS AS, NO |
|
CREP | Change of representative |
Representative=s name: BRYN AARFLOT AS, POSTBOKS 449 SENTRUM, 0104 OSLO |
|
MK1K | Patent expired |