DE2221741C3 - Vorrichtung zur kapazitiven Messung der örtlichen Lage von Trennschichten zwischen zwei aneinander grenzenden Medien - Google Patents

Vorrichtung zur kapazitiven Messung der örtlichen Lage von Trennschichten zwischen zwei aneinander grenzenden Medien

Info

Publication number
DE2221741C3
DE2221741C3 DE2221741A DE2221741A DE2221741C3 DE 2221741 C3 DE2221741 C3 DE 2221741C3 DE 2221741 A DE2221741 A DE 2221741A DE 2221741 A DE2221741 A DE 2221741A DE 2221741 C3 DE2221741 C3 DE 2221741C3
Authority
DE
Germany
Prior art keywords
counter
electrodes
electrode
capacitors
differential
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
Application number
DE2221741A
Other languages
German (de)
English (en)
Other versions
DE2221741A1 (de
DE2221741B2 (de
Inventor
Heribert Dipl.-Phys. Wohlen Geisselmann (Schweiz)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Training Center GmbH and Co KG
Original Assignee
Hartmann and Braun AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hartmann and Braun AG filed Critical Hartmann and Braun AG
Publication of DE2221741A1 publication Critical patent/DE2221741A1/de
Publication of DE2221741B2 publication Critical patent/DE2221741B2/de
Application granted granted Critical
Publication of DE2221741C3 publication Critical patent/DE2221741C3/de
Expired legal-status Critical Current

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
    • G01F23/265—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

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 Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
DE2221741A 1971-05-06 1972-05-04 Vorrichtung zur kapazitiven Messung der örtlichen Lage von Trennschichten zwischen zwei aneinander grenzenden Medien Expired DE2221741C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH674271A CH538114A (de) 1971-05-06 1971-05-06 Vorrichtung zur Digitalen, kapazitiven Messung der örtlichen Lage von Trennschichten zwischen mindestens zwei aneinandergrenzenden Medien

Publications (3)

Publication Number Publication Date
DE2221741A1 DE2221741A1 (de) 1972-11-23
DE2221741B2 DE2221741B2 (de) 1973-10-31
DE2221741C3 true DE2221741C3 (de) 1974-05-30

Family

ID=4314306

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2221741A Expired DE2221741C3 (de) 1971-05-06 1972-05-04 Vorrichtung zur kapazitiven Messung der örtlichen Lage von Trennschichten zwischen zwei aneinander grenzenden Medien

Country Status (5)

Country Link
US (1) US3777257A (https=)
CH (1) CH538114A (https=)
DE (1) DE2221741C3 (https=)
FR (1) FR2135291B1 (https=)
GB (1) GB1395573A (https=)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007636A (en) * 1973-08-30 1977-02-15 Mine Safety Appliances Company Liquid metal level indicator
US3935739A (en) * 1974-04-10 1976-02-03 Liquidometer Corporation Liquid level gauging apparatus
US3911744A (en) * 1974-04-10 1975-10-14 Liquidometer Corp Liquid level gauging apparatus
US3952593A (en) * 1974-08-01 1976-04-27 Liquidometer Corporation Liquid level gauge
FR2386811A1 (fr) * 1977-04-06 1978-11-03 Elf Aquitaine Detecteur de niveau de separation entre deux liquides
US4145927A (en) * 1977-11-10 1979-03-27 Larson Roger G Apparatus for determining the liquid level in a tank
US4190797A (en) * 1978-03-31 1980-02-26 Gould Inc. Capacitive gauging system utilizing a low internal capacitance, high impedance amplifier means
DE2908449C2 (de) * 1979-03-05 1986-04-03 Vdo Adolf Schindling Ag, 6000 Frankfurt Einrichtng zur kapazitiven Füllstandsmessung insbesondere in einem Kraftfahrzeugtank
DE3138765C2 (de) * 1981-09-25 1983-11-17 Hans Renens Vaud Meyer Verfahren zur Herstellung eines Maßstabes
CH648929A5 (fr) * 1982-07-07 1985-04-15 Tesa Sa Dispositif de mesure capacitif de deplacement.
US4490679A (en) * 1982-08-09 1984-12-25 Texaco Inc. Probe type paraffin monitor
SE456613B (sv) * 1985-03-14 1988-10-17 Skega Ab Elektrod for metning av relativ kapacitivitet
US4591946A (en) * 1985-04-30 1986-05-27 Southwest Pump Company Capacitance probe for use in a measuring system for location of a liquid level interface
US4885529A (en) * 1988-03-10 1989-12-05 Lee David O Identification of fluids and an interface between fluids by measuring complex impedance
GB2223589B (en) * 1988-09-14 1991-07-24 Valk Rob V D Measurement of capacitance and parameters related thereto
US5012683A (en) * 1990-01-18 1991-05-07 E. I. Dupont De Nemours And Company Capacitive liquid interface sensor
US5611240A (en) * 1992-04-03 1997-03-18 Toyota Tsusho Corporation Level detector
US5321366A (en) * 1992-08-31 1994-06-14 Murata Mfg. Co. Ltd. Capacitance sensor apparatus of divided multi-electrode type
ATE175271T1 (de) * 1993-02-01 1999-01-15 Lee Maatuk Engineering Inc Hessonde für verschiedene flüssigkeiten und geneigte flüssigkeitsspiegel
EP0747673B1 (fr) * 1995-06-07 2003-03-26 Brown & Sharpe Tesa S.A. Dispositif de mesure capacitif
DE19531124C2 (de) * 1995-08-24 1997-08-14 Krohne Ag Verfahren zur Bestimmung des Phasenanteils eines Mediums in offenen und geschlossenen Leitungen
DE19644777C1 (de) * 1996-10-28 1998-06-04 Sican Gmbh Füllstandssensor mit einer Anzahl kapazitiver Sensoren
DE19713267A1 (de) * 1997-01-28 1998-07-30 Abb Research Ltd Verfahren zur Bestimmung der Dielektrizitätskonstante und/oder der Leitfähigkeit mindestens eines Mediums sowie Vorrichtung zur Durchführung des Verfahrens
DE19916979A1 (de) * 1999-04-15 2000-11-02 Sican Gmbh Verfahren zur Füllstandsmessung und Füllstandssensor
DE10161918C2 (de) * 2001-12-17 2003-10-23 Bosch Gmbh Robert Verfahren zum Betrieb eines Füllstandssensors und Füllstandssensor
US7185960B2 (en) * 2003-07-30 2007-03-06 Hewlett-Packard Development Company, L.P. Printing device having a printing fluid detector
RU2262669C2 (ru) * 2003-10-01 2005-10-20 Открытое акционерное общество "Ракетно-космическая корпорация "Энергия" им. С.П. Королева" Способ определения уровня диэлектрического вещества
RU2262668C2 (ru) * 2003-10-01 2005-10-20 Открытое акционерное общество "Ракетно-космическая корпороация "Энергия" им. С.П. Королева" Устройство для измерения уровня диэлектрического вещества
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
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
BRPI0504625A (pt) * 2005-07-05 2006-05-30 Indebras Ind Eletromecanica Br dispositivo para a indicação do nìvel de um lìquido armazenado no interior de um reservatório
US20080034847A1 (en) * 2006-08-10 2008-02-14 Golter Lee B Appartus and method for content discrimination
GB201019683D0 (en) * 2010-11-19 2011-01-05 Domino Printing Sciences Plc Improvements in or relating to inkjet printers
RU2456552C1 (ru) * 2010-12-15 2012-07-20 Открытое акционерное общество "Ракетно-космическая корпорация "Энергия" имени С.П. Королева" Способ определения уровня диэлектрического вещества
DE112015004614T5 (de) * 2014-10-08 2017-06-22 Semiconductor Components Industries, Llc Pegelsensor und Verfahren
RU2650745C1 (ru) * 2016-07-12 2018-04-17 Публичное акционерное общество "Ракетно-космическая корпорация "Энергия" имени С.П. Королева" Устройство для определения уровня диэлектрического вещества

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754478A (en) * 1951-07-27 1956-07-10 Lever Brothers Ltd Apparatus for measuring dielectric properties of materials
US3181557A (en) * 1962-11-02 1965-05-04 Jr James E Lannan Liquid interface sensor
US3297941A (en) * 1963-01-23 1967-01-10 Sogenique Electronics Ltd Position-sensitive apparatus
US3301056A (en) * 1963-06-14 1967-01-31 Trans Sonics Inc Liquid measuring system
GB1110175A (en) * 1964-06-04 1968-04-18 Rosemount Eng Co Ltd Improvements in or relating to fluid level sensors
US3360951A (en) * 1966-02-14 1968-01-02 King Seeley Thermos Co Ice level control for refrigeration mechanism
GB1215092A (en) * 1968-02-12 1970-12-09 Rank Organisation Ltd Improvements in or relating to position responsive apparatus
US3644821A (en) * 1969-01-14 1972-02-22 Atomic Energy Commission Capacitance method and apparatus for detecting an interface between electrically conductive immiscible liquids
US3665209A (en) * 1969-10-22 1972-05-23 T H Creears Corp Fluid level control system

Also Published As

Publication number Publication date
GB1395573A (en) 1975-05-29
FR2135291A1 (https=) 1972-12-15
US3777257A (en) 1973-12-04
DE2221741A1 (de) 1972-11-23
CH538114A (de) 1973-06-15
FR2135291B1 (https=) 1975-07-18
DE2221741B2 (de) 1973-10-31

Similar Documents

Publication Publication Date Title
DE2221741C3 (de) Vorrichtung zur kapazitiven Messung der örtlichen Lage von Trennschichten zwischen zwei aneinander grenzenden Medien
DE2645716C2 (de) Einrichtung zum kontinuierlichen Messen des Flüssigkeitsstandes in einem Behälter
DE3331305C2 (https=)
DE2242723C2 (de) Vorrichtung zur Niveamessung
DE3785185T2 (de) Geraet und verfahren zum messen der stroemungscharakteristika einer petroleumstroemung.
EP0029485B1 (de) Einrichtung zur kapazitiven Füllstandsmessung
DE2515065C2 (de) Standhöhen-Meßgerät für Flüssigkeits-Behälter
DE2948165C2 (de) Kapazitiver Druckmeßfühler
DE2824144C2 (de) Einrichtung zur kapazitiven Niveauhöhenmessung von Flüssigkeiten oder Feststoffen
DE3020411C2 (de) Vorrichtung zum Messen der Verschiebung zweier Körper
DE3032155A1 (de) Vorrichtung zur messung einer kapazitaet
DE2218824B2 (de) Verfahren zum Messen der Verschiebung einer Elektrode eines Differentialkondensators relativ zu den anderen Elektroden
DE3337978C2 (de) Vorrichtung zum Messen eines Druckes und eines zeitlichen Druckverlaufs
DE3114678C2 (de) Füllstandsanzeiger für stromleitende Flüssigkeiten und Schüttgut
CH669047A5 (de) Anordnung zur erfassung raeumlicher inhomogenitaeten in einem dielektrikum.
DE3901997A1 (de) Elektrischer neigungssensor und ueberwachungsschaltung fuer den sensor
DE68917199T2 (de) Alkoholfühler.
DE2941652A1 (de) Vorrichtung zur kapazitiven fuellstandsmessung
DE2243936A1 (de) Ringkolbenzaehler fuer das durchlaufmessen von fluessigkeiten
EP0508143A2 (de) Füllstands-Messvorrichtung
DE2803863A1 (de) Einrichtung zum kontinuierlichen messen des fluessigkeitsstandes in einem behaelter
DE2459909C3 (de) Längen- oder Wegmesser
DE19644777C1 (de) Füllstandssensor mit einer Anzahl kapazitiver Sensoren
EP1451535B1 (de) Verfahren zur kapazitiven füllstandsmessung
DE2939739A1 (de) Verfahren, vorrichtung und einrichtung zur messung der dickenaenderungen von kunststoffolien

Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)