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DE3881394D1 - Detektion der oberflaeche einer fluessigkeit oder schaumschicht. - Google Patents

Detektion der oberflaeche einer fluessigkeit oder schaumschicht.

Info

Publication number
DE3881394D1
DE3881394D1 DE8888310429T DE3881394T DE3881394D1 DE 3881394 D1 DE3881394 D1 DE 3881394D1 DE 8888310429 T DE8888310429 T DE 8888310429T DE 3881394 T DE3881394 T DE 3881394T DE 3881394 D1 DE3881394 D1 DE 3881394D1
Authority
DE
Germany
Prior art keywords
detector electrode
electrode
foam
liq
heater
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 - Fee Related
Application number
DE8888310429T
Other languages
English (en)
Other versions
DE3881394T2 (de
Inventor
Yoichi Ishikawa
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.)
Able Corp
Original Assignee
Able Corp
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 Able Corp filed Critical Able Corp
Application granted granted Critical
Publication of DE3881394D1 publication Critical patent/DE3881394D1/de
Publication of DE3881394T2 publication Critical patent/DE3881394T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01F23/24—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 resistance of resistors due to contact with conductor fluid
    • G01F23/241—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 resistance of resistors due to contact with conductor fluid for discrete levels
    • G01F23/242—Mounting arrangements for electrodes
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Processing Of Solid Wastes (AREA)
DE8888310429T 1988-11-05 1988-11-05 Detektion der oberflaeche einer fluessigkeit oder schaumschicht. Expired - Fee Related DE3881394T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88310429A EP0367868B1 (de) 1988-11-05 1988-11-05 Detektion der Oberfläche einer Flüssigkeit oder Schaumschicht

Publications (2)

Publication Number Publication Date
DE3881394D1 true DE3881394D1 (de) 1993-07-01
DE3881394T2 DE3881394T2 (de) 1993-09-09

Family

ID=8200276

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888310429T Expired - Fee Related DE3881394T2 (de) 1988-11-05 1988-11-05 Detektion der oberflaeche einer fluessigkeit oder schaumschicht.

Country Status (3)

Country Link
US (1) US4902962A (de)
EP (1) EP0367868B1 (de)
DE (1) DE3881394T2 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5057823A (en) * 1990-03-12 1991-10-15 Imi Cornelius Inc. Probe for sensing the presence of liquid in a container
US5220514A (en) * 1990-04-11 1993-06-15 Itt Corporation Method & apparatus for liquid level conductance probe control unit with increased sensitivity
GB9025948D0 (en) * 1990-11-29 1991-01-16 British Gas Plc Measuring probe
US5459459A (en) * 1992-12-28 1995-10-17 General Electric Company Method and apparatus for transmitting data from an energy meter
LU88552A1 (fr) * 1994-10-31 1995-02-01 Luxembourg Patent Co Robinet avec jauge de niveau intégrée
DE19507616B4 (de) * 1995-03-04 2007-02-01 Gestra Ag Sonde zur Überwachung von Flüssigkeit mit Leckageschutz
US5907112A (en) * 1995-08-24 1999-05-25 Magnetrol International Inc. Probe secondary seal
US6435710B1 (en) * 1998-08-26 2002-08-20 Fauske & Associates, Inc. Foam detector apparatus and method
US6763704B2 (en) * 2000-03-10 2004-07-20 Cds Analytical, Inc. Foam detector for concentrator attachment for gas chromatograph
US6390027B1 (en) 2000-05-31 2002-05-21 C. Cowles & Company Cycle control system for boiler and associated burner
DE202006001950U1 (de) 2006-02-06 2007-06-06 Hengst Gmbh & Co.Kg Fluidfilter, mit geschütztem Flüssigkeitssensor
US7317993B2 (en) * 2006-03-15 2008-01-08 Potter Electric Signal Company Fluid detector recognizing foam and surge conditions
DE202007019018U1 (de) * 2007-06-05 2010-05-12 Griebel, Herbert Sensor und damit ausgestatteter Abscheidebehälter
DE102007056544A1 (de) * 2007-11-23 2009-05-28 Robert Bosch Gmbh Sensoranordnung zur Bestimmung eines Tankfüllstands und Verfahren zur Herstellung hierzu
EP2343514B1 (de) * 2009-12-22 2013-04-24 Endress+Hauser Wetzer GmbH+CO. KG Einbauarmatur für einen stabförmigen Messeinsatz
US8756992B2 (en) 2011-09-14 2014-06-24 Alstom Technology Ltd Level detector for measuring foam and aerated slurry level in a wet flue gas desulfurization absorber tower
DE102011088736A1 (de) * 2011-12-15 2013-06-20 Endress + Hauser Wetzer Gmbh + Co. Kg Einbauarmatur mit einer Dichtungsvorrichtung
AU2014226216B2 (en) * 2013-03-04 2018-04-19 Teledyne Detcon, Inc. Wire seal for a detector assembly
JP6233153B2 (ja) * 2014-04-03 2017-11-22 新日鐵住金株式会社 静電容量式レベル測定装置および導電性異物の付着防止方法
US10914029B2 (en) * 2018-09-12 2021-02-09 Haier Us Appliance Solutions, Inc. Fluid sensor assembly for a washing machine appliance
US11428407B2 (en) 2018-09-26 2022-08-30 Cowles Operating Company Combustion air proving apparatus with burner cut-off capability and method of performing the same

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1473209A1 (de) * 1963-12-16 1969-01-02 Indron Leipzig Veb Messsonde mit Gegenelektrode und besonders geschuetzten Isolationsstrecken
NL170331C (nl) * 1970-12-14 1982-10-18 Proton Ag Meetwaardegeefinrichting.
CA1053778A (en) * 1976-05-06 1979-05-01 Frank Kitzinger Froth level monitor
FR2399010A1 (fr) * 1977-07-26 1979-02-23 Dba Indicateur de niveau d'un liquide contenu dans un reservoir
US4418571A (en) * 1980-08-22 1983-12-06 Veeder Industries, Inc. Liquid level measuring system
US4383544A (en) * 1980-09-03 1983-05-17 Vosper George W Boiler low water level sensing device
US4361038A (en) * 1980-12-01 1982-11-30 General Dynamics Corporation Liquid level sensor
DE8216324U1 (de) * 1982-06-04 1982-09-23 Endress U. Hauser Gmbh U. Co, 7867 Maulburg Sonde zur kapazitiven messung des fuellstands in einem behaelter, insbesondere von heissem fuellgut
EP0115106A1 (de) * 1983-01-25 1984-08-08 George W. Vosper Kesselabschaltung bei Mindestwasserstand
US4476028A (en) * 1983-04-25 1984-10-09 Stant Inc. Heater and water probe
DE3446060A1 (de) * 1984-12-18 1986-06-26 Columbus-Profivac GmbH, 7000 Stuttgart Einrichtung zur ueberwachung der fuellhoehe im saugbehaelter eines wassersaugers o.dgl.

Also Published As

Publication number Publication date
DE3881394T2 (de) 1993-09-09
US4902962A (en) 1990-02-20
EP0367868B1 (de) 1993-05-26
EP0367868A1 (de) 1990-05-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee