DE60237871D1 - Kapazitiver Flüssigkeitsfüllstandssensor für Unterwasserpumpen - Google Patents

Kapazitiver Flüssigkeitsfüllstandssensor für Unterwasserpumpen

Info

Publication number
DE60237871D1
DE60237871D1 DE60237871T DE60237871T DE60237871D1 DE 60237871 D1 DE60237871 D1 DE 60237871D1 DE 60237871 T DE60237871 T DE 60237871T DE 60237871 T DE60237871 T DE 60237871T DE 60237871 D1 DE60237871 D1 DE 60237871D1
Authority
DE
Germany
Prior art keywords
liquid level
level sensor
capacitive liquid
underwater pumps
pumps
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 - Lifetime
Application number
DE60237871T
Other languages
English (en)
Inventor
Elio Marioni
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.)
Askoll Holding SRL
Original Assignee
Askoll Holding SRL
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 Askoll Holding SRL filed Critical Askoll Holding SRL
Application granted granted Critical
Publication of DE60237871D1 publication Critical patent/DE60237871D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Control Of Non-Electrical Variables (AREA)
DE60237871T 2001-11-20 2002-11-13 Kapazitiver Flüssigkeitsfüllstandssensor für Unterwasserpumpen Expired - Lifetime DE60237871D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2001PD000269A ITPD20010269A1 (it) 2001-11-20 2001-11-20 Dispositivo perfezionato per il rilevamento di livello di liquido particolarmente per pompe sommerse.

Publications (1)

Publication Number Publication Date
DE60237871D1 true DE60237871D1 (de) 2010-11-18

Family

ID=11452483

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60237871T Expired - Lifetime DE60237871D1 (de) 2001-11-20 2002-11-13 Kapazitiver Flüssigkeitsfüllstandssensor für Unterwasserpumpen

Country Status (6)

Country Link
US (1) US6675647B2 (de)
EP (1) EP1312897B1 (de)
AT (1) ATE483954T1 (de)
DE (1) DE60237871D1 (de)
ES (1) ES2354059T3 (de)
IT (1) ITPD20010269A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004053626A1 (de) * 2004-11-01 2006-05-04 Benjamin Hoffmeier Verfahren und Vorrichtung zum kapazitiven Füllstandsmessung
US8936444B2 (en) * 2007-12-07 2015-01-20 Pentair Flow Technologies, Llc Capacitive liquid level sensor
DE102010025118A1 (de) 2010-06-25 2011-12-29 Siemens Healthcare Diagnostics Products Gmbh Berührungslose Füllstandsmessung von Flüssigkeiten
US8956061B2 (en) 2010-07-07 2015-02-17 Cervantes Mobile Compact keyboard and cradle
US9907908B2 (en) 2011-03-08 2018-03-06 Baxter International Inc. Non-invasive radio frequency medical fluid level and volume detection system and method
US10203238B2 (en) 2014-03-07 2019-02-12 Barrelogix, Llc Liquid detection apparatus
GB2531291B (en) * 2014-10-14 2019-12-04 Aspen Pumps Ltd Liquid level detector
EP3875765A1 (de) * 2020-03-02 2021-09-08 Husqvarna Ab Tauchpumpe mit berührungsempfindlichen sensoren

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4987776A (en) * 1988-03-16 1991-01-29 Koon Terry D Level indicator
US5017909A (en) 1989-01-06 1991-05-21 Standex International Corporation Capacitive liquid level sensor
US5856783A (en) * 1990-01-02 1999-01-05 Raptor, Inc. Pump control system
US5460007A (en) 1994-06-28 1995-10-24 Arthur P. Little, Inc. Ice level sensor for an ice maker
US5747689A (en) * 1996-12-09 1998-05-05 Ford Global Technologies, Inc. Fluid level sensing system
WO1999010714A1 (en) 1997-08-25 1999-03-04 Millennium Sensors Ltd. A compensated capacitive liquid level sensor
DE19816455A1 (de) * 1998-04-14 1999-10-28 Mannesmann Vdo Ag Füllstandssensor
WO2000042395A1 (en) * 1999-01-19 2000-07-20 Rocky Mountain Research, Inc. Method and apparatus for detection of a fluid level in a container

Also Published As

Publication number Publication date
EP1312897B1 (de) 2010-10-06
EP1312897A2 (de) 2003-05-21
ES2354059T3 (es) 2011-03-09
ATE483954T1 (de) 2010-10-15
ITPD20010269A1 (it) 2003-05-20
US20030094043A1 (en) 2003-05-22
US6675647B2 (en) 2004-01-13
EP1312897A3 (de) 2007-03-21

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