SE447305B - Anordning for faststellande av pafyllningsnivan i en behallare - Google Patents

Anordning for faststellande av pafyllningsnivan i en behallare

Info

Publication number
SE447305B
SE447305B SE8104632A SE8104632A SE447305B SE 447305 B SE447305 B SE 447305B SE 8104632 A SE8104632 A SE 8104632A SE 8104632 A SE8104632 A SE 8104632A SE 447305 B SE447305 B SE 447305B
Authority
SE
Sweden
Prior art keywords
probe
capacitance
measuring
frequency
voltage
Prior art date
Application number
SE8104632A
Other languages
English (en)
Swedish (sv)
Other versions
SE8104632L (sv
Inventor
H-J Franz
V Dreyer
Original Assignee
Endress Hauser Gmbh Co
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 Endress Hauser Gmbh Co filed Critical Endress Hauser Gmbh Co
Publication of SE8104632L publication Critical patent/SE8104632L/
Publication of SE447305B publication Critical patent/SE447305B/sv

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
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
    • G01F25/24—Testing proper functioning of electronic circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
SE8104632A 1980-08-01 1981-07-31 Anordning for faststellande av pafyllningsnivan i en behallare SE447305B (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3029279 1980-08-01
DE3127637A DE3127637C2 (de) 1980-08-01 1981-07-13 Anordnung zur Feststellung des Füllstands in einem Behälter

Publications (2)

Publication Number Publication Date
SE8104632L SE8104632L (sv) 1982-02-02
SE447305B true SE447305B (sv) 1986-11-03

Family

ID=25787018

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8104632A SE447305B (sv) 1980-08-01 1981-07-31 Anordning for faststellande av pafyllningsnivan i en behallare

Country Status (8)

Country Link
US (1) US4412450A (fr)
CH (1) CH652499A5 (fr)
DE (1) DE3127637C2 (fr)
FR (1) FR2487976B1 (fr)
GB (1) GB2081452B (fr)
IT (1) IT1137773B (fr)
NL (2) NL187994C (fr)
SE (1) SE447305B (fr)

Families Citing this family (46)

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JPS57168169A (en) * 1981-04-10 1982-10-16 Nissan Motor Co Ltd Electrostatic capacitance detector
US4525792A (en) * 1982-03-29 1985-06-25 Smiths Industries Public Limited Company Unidirectional capacitive fluid-gauging systems
DE3322657A1 (de) * 1983-06-23 1985-01-10 VEGA Grieshaber GmbH & Co, 7620 Wolfach Vorrichtung zur ueberwachung einer laenglichen, fuer die kapazitive fuellstandsmessung in einem behaelter vorgesehenen sonde auf abriss
US4528839A (en) * 1984-04-27 1985-07-16 The Foxboro Company Transfer calibration system
GB8429727D0 (en) * 1984-11-24 1985-01-03 Bass Plc Monitoring level of liquid
DE3610166A1 (de) * 1985-04-03 1986-10-09 Smiths Industries Public Ltd. Co., London Fuellstandsmessgeraet
US5048335A (en) * 1987-10-01 1991-09-17 Bindicator Company Capacitance-type material level indicator
EP0360405A3 (fr) * 1988-08-18 1990-04-11 Texas Instruments Incorporated Capteur du niveau du réfrigérant à deux fils
DE3843339A1 (de) * 1988-12-22 1990-06-28 Vega Grieshaber Gmbh & Co Anordnung zur kapazitiven fuellstandsmessung
EP0405835A3 (en) * 1989-06-28 1991-05-02 Texas Instruments Incorporated Two wire coolant level sensor
CA2032384C (fr) * 1989-12-18 2000-06-20 Drexelbrook Controls, Inc. Systeme de teletest d'instrumentation
DE4232719C2 (de) * 1992-09-30 1996-05-09 Grieshaber Vega Kg Füllstand-Grenzschalter
DE4232720C1 (de) * 1992-09-30 1994-03-10 Vega Grieshaber Gmbh & Co Anordnung zur Funktionsüberwachung und Meßwertauswertung von Füllstands-Sensoren, insbesondere Vibrations-Füllstands-Grenzschaltern
DE4244761C2 (de) * 1992-09-30 1998-09-10 Grieshaber Vega Kg Füllstand-Grenzschalter
US5635896A (en) * 1993-12-27 1997-06-03 Honeywell Inc. Locally powered control system having a remote sensing unit with a two wire connection
DE4405238C2 (de) 1994-02-18 1998-07-09 Endress Hauser Gmbh Co Anordnung zur Messung des Füllstands in einem Behälter
US5434774A (en) * 1994-03-02 1995-07-18 Fisher Controls International, Inc. Interface apparatus for two-wire communication in process control loops
US5672975A (en) 1995-06-07 1997-09-30 Rosemount Inc. Two-wire level transmitter
FR2737297A1 (fr) * 1995-07-27 1997-01-31 Snecma Dispositif capacitif de jaugeage et ensemble de mesure de niveau et de controle de la qualite d'un liquide contenu dans un reservoir
DE19728443C1 (de) * 1997-07-03 1999-02-25 Tuchenhagen Gmbh Überwachungselektrode für die Füllstandsanzeige in Behältern zur Bevorratung elektrisch leitender Flüssigkeiten
US5940899A (en) * 1997-12-31 1999-08-24 Envision This, Inc. System for preventing toilet overflows
DE59914913D1 (de) * 1999-10-07 2009-01-08 Endress Hauser Gmbh Co Verfahren und eine Vorrichtung zur Funktionsüberprüfung eines Grenzschalters
EP1134562B1 (fr) * 2000-03-15 2009-11-18 Endress + Hauser GmbH + Co. KG Procédé de transmission d'un signal de mesure entre une unité de mesure et une unité de contrôle
DE10119471A1 (de) * 2001-04-20 2002-10-31 Micronas Gmbh Verfahren und Zweidrahtsensor zur Messung einer physikalischen Größe
US6522249B1 (en) * 2001-08-30 2003-02-18 United Electric Controls, Co. Two wire output/power mechanism for remote devices
US7134330B2 (en) * 2003-05-16 2006-11-14 Endress + Hauser Gmbh + Co. Kg Capacitive fill level meter
DE10324731A1 (de) * 2003-05-31 2004-12-16 Braun Gmbh Verfahren und Schaltungsanordnung zur Detektion eines Füllstands einer Flüssigkeit
DE102005032131A1 (de) * 2005-07-07 2007-01-18 Endress + Hauser Gmbh + Co. Kg Vorrichtung zur kapazitiven Bestimmung und/oder Überwachung des Füllstandes
US8936444B2 (en) * 2007-12-07 2015-01-20 Pentair Flow Technologies, Llc Capacitive liquid level sensor
DE102008022373A1 (de) * 2008-05-06 2009-11-12 Endress + Hauser Flowtec Ag Meßgerät sowie Verfahren zum Überwachen eines Meßgeräts
DE102008036552A1 (de) * 2008-08-06 2010-02-18 Endress + Hauser Gmbh + Co. Kg Feldgerät der Prozessautomatisierung
CH702180B1 (de) 2009-11-02 2015-02-13 Tecan Trading Ag Verfahren zum Testen eines Laborgeräts und entsprechendes Laborgerät.
DE102009046691B4 (de) * 2009-11-13 2013-06-06 Balluff Gmbh Sensorvorrichtung
GB201116173D0 (en) * 2011-09-20 2011-11-02 Rolls Royce Plc Oil sensor
DE102011089941A1 (de) 2011-12-27 2013-06-27 Endress + Hauser Gmbh + Co. Kg Vorrichtung zur Bestimmung und/oder Überwachung eines Grenzwertes einer Prozessgröße
US9261395B2 (en) 2012-02-13 2016-02-16 Goodrich Corporation Liquid level sensing system
US9574928B2 (en) 2012-02-13 2017-02-21 Goodrich Corporation Liquid level sensing systems
GB2505190A (en) * 2012-08-21 2014-02-26 Schrader Electronics Ltd Level sensing in a vehicle fuel tank using electromagnetic fields
US9857493B2 (en) * 2012-12-24 2018-01-02 Sintokogio, Ltd. Method for detecting powder and powder detection device
DE102014107927A1 (de) * 2014-06-05 2015-12-17 Endress + Hauser Gmbh + Co. Kg Verfahren und Vorrichtung zur Überwachung des Füllstandes eines Mediums in einem Behälter
DE102015122284A1 (de) * 2015-12-18 2017-06-22 Endress + Hauser Gmbh + Co. Kg Elektronikeinheit mit Diagnosefunktion
DE102016107808B4 (de) * 2016-04-27 2022-03-31 Tdk-Micronas Gmbh Verfahren und Anordnung zur Überwachung eines Zustands
DE102017127145B4 (de) * 2017-11-17 2021-03-04 BEDIA Motorentechnik GmbH & Co. KG Vorrichtung und Verfahren zur kapazitiven Messung eines Füllstands eines Füllmediums
DE102017012240B4 (de) * 2017-11-17 2019-09-19 BEDIA Motorentechnik GmbH & Co. KG Vorrichtung und Verfahren zur kapazitiven Messung eines Füllstands eines Füllmediums
CN111341243B (zh) * 2020-04-10 2021-08-24 Tcl华星光电技术有限公司 显示装置
DE102022111828A1 (de) * 2022-05-11 2023-11-16 Endress+Hauser SE+Co. KG Zustandsüberwachung eines vibronischen Sensors

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042908A (en) * 1959-09-02 1962-07-03 Honeywell Regulator Co Fluid level sensor
DE1573090B1 (de) * 1966-05-25 1970-10-22 Siemens Ag Verfahren und Schaltungsanordnung zur Sicherung von Fluessigkeitstanks gegen UEberfuellung
DE1801772B1 (de) * 1968-10-08 1970-05-21 Endress Hauser Gmbh Co Verfahren zur Eichung von kapazitiven Fuellstandsmessgeraeten
DE1908750B2 (de) * 1969-02-18 1971-04-01 Schaltung zur signalisierung von fuellstaenden
US3543046A (en) * 1969-04-14 1970-11-24 Fisher Governor Co Capacitance-measuring techniques
DE2050895A1 (de) * 1970-10-16 1972-04-20 Eppmann H Elektronischer Inhaltsanzeiger für Flüssiggasbehälter
DE2259849C3 (de) * 1972-12-07 1975-07-03 Hoechst Ag, 6000 Frankfurt Anordnung zur automatischen überprüfung der Funktionsfähigkeit einer kapazitiven Meßeinrichtung
DE2400723C2 (de) * 1974-01-08 1985-06-27 Pepperl & Fuchs Gmbh & Co Kg, 6800 Mannheim Schaltvorrichtung
US3956760A (en) * 1975-03-12 1976-05-11 Liquidometer Corporation Liquid level gauge
DE2701184A1 (de) * 1977-01-13 1978-07-27 Endress Hauser Gmbh Co Schaltungsanordnung zur uebertragung von messwertsignalen
US4149412A (en) * 1978-06-16 1979-04-17 Fish Bobby L Level measuring apparatus
DE2837377C3 (de) * 1978-08-26 1981-07-02 Vega Vertrieb und Fertigung elektronischer Geräte und Apparate Grieshaber KG, 7620 Wolfach Verfahren und Anordnung zur Messung, Fernübertragung und Rückgewinnung von Meßgrößen

Also Published As

Publication number Publication date
CH652499A5 (de) 1985-11-15
GB2081452B (en) 1985-06-26
US4412450A (en) 1983-11-01
SE8104632L (sv) 1982-02-02
NL187994B (nl) 1991-10-01
NL8103569A (nl) 1982-03-01
NL187994C (nl) 1992-03-02
DE3127637C2 (de) 1988-08-18
IT1137773B (it) 1986-09-10
FR2487976B1 (fr) 1986-02-21
NL9200020A (nl) 1992-04-01
DE3127637A1 (de) 1982-03-25
IT8123318A0 (it) 1981-07-31
FR2487976A1 (fr) 1982-02-05
GB2081452A (en) 1982-02-17

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