DE69724772D1 - Flüssigkeitssensor - Google Patents

Flüssigkeitssensor

Info

Publication number
DE69724772D1
DE69724772D1 DE69724772T DE69724772T DE69724772D1 DE 69724772 D1 DE69724772 D1 DE 69724772D1 DE 69724772 T DE69724772 T DE 69724772T DE 69724772 T DE69724772 T DE 69724772T DE 69724772 D1 DE69724772 D1 DE 69724772D1
Authority
DE
Germany
Prior art keywords
liquid sensor
sensor
liquid
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
DE69724772T
Other languages
English (en)
Other versions
DE69724772T2 (de
Inventor
N Lease
Paul Dollison
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.)
Robertshaw Controls Co
Original Assignee
Robertshaw Controls 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 Robertshaw Controls Co filed Critical Robertshaw Controls Co
Application granted granted Critical
Publication of DE69724772D1 publication Critical patent/DE69724772D1/de
Publication of DE69724772T2 publication Critical patent/DE69724772T2/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
    • G01F23/26—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
DE69724772T 1996-04-03 1997-04-02 Flüssigkeitssensor Expired - Fee Related DE69724772T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US1467396P 1996-04-03 1996-04-03
US14673P 1996-04-03
PCT/US1997/005467 WO1997037198A1 (en) 1996-04-03 1997-04-02 Fluid sensor

Publications (2)

Publication Number Publication Date
DE69724772D1 true DE69724772D1 (de) 2003-10-16
DE69724772T2 DE69724772T2 (de) 2004-07-01

Family

ID=21766967

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69724772T Expired - Fee Related DE69724772T2 (de) 1996-04-03 1997-04-02 Flüssigkeitssensor

Country Status (7)

Country Link
US (1) US5861811A (de)
EP (1) EP0891535B1 (de)
JP (1) JP2000507704A (de)
AU (1) AU2434497A (de)
DE (1) DE69724772T2 (de)
ES (1) ES2206702T3 (de)
WO (1) WO1997037198A1 (de)

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US6076399A (en) * 1997-10-30 2000-06-20 Crane Pumps & Systems, Inc. Level switch filter for sewer basin
AU2971900A (en) * 1999-01-21 2000-08-07 Sgi International Method and apparatus for measuring fluid levels in vessels
US6260517B1 (en) * 2000-07-19 2001-07-17 Brunswick Corporation Marine propulsion system with water detecting sensors
US6546796B2 (en) 2001-03-15 2003-04-15 Therm-O-Disc, Incorporated Liquid level sensor
US6938479B2 (en) * 2002-08-12 2005-09-06 Randy Val Carpenter Sensing device for measuring volume, position, or mass of matter
US7086280B2 (en) * 2003-10-06 2006-08-08 Ricardo, Inc. Aeration sensing device
DE102004021394B4 (de) 2004-04-30 2006-09-28 Wacker Construction Equipment Ag Ölstandsüberwachungssystem für Verbrennungsmotor
US7249507B2 (en) * 2004-11-23 2007-07-31 Automotive Components Holdings, Llc Fluid level sensor probe
US7475665B2 (en) * 2006-01-17 2009-01-13 Wacker Neuson Corporation Capacitance-based fluid level sensor
DE102007007407A1 (de) * 2007-02-12 2008-08-21 Krohne S.A. Füllstandsschalter und Verfahren zur Erfassung des Füllzustands eines in einem Behälter vorgesehenen Mediums
JP5133667B2 (ja) * 2007-02-23 2013-01-30 エスアイアイ・プリンテック株式会社 残量検知センサおよびそれを用いたインクジェットプリンタ
US7711509B2 (en) * 2007-03-29 2010-05-04 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Method of calibrating a fluid-level measurement system
DE102007037364A1 (de) * 2007-08-08 2009-02-12 Robert Bosch Gmbh Flüssigkeitssensor
US8508373B2 (en) * 2010-05-27 2013-08-13 David Rice Fluid leak detection and alarm
US20140116808A1 (en) * 2012-11-01 2014-05-01 Ronald J. Kile Lubricating oil monitoring and maintenance cap with oil level monitoring system
US9488513B2 (en) * 2012-12-05 2016-11-08 Molex, Llc Flexible fluid level sensor with improved measurement capability
US10240965B2 (en) 2012-12-05 2019-03-26 Molex, Llc Flexible fluid level sensor with improved measurement capability
US9400201B1 (en) * 2013-02-20 2016-07-26 Aub N. Ward Rising water alarms
JP2016090302A (ja) * 2014-10-31 2016-05-23 株式会社鷺宮製作所 液体検知ユニット、圧縮機及び空気調和機
DE102014118547A1 (de) * 2014-12-12 2016-06-16 Endress + Hauser Gmbh + Co. Kg Sondeneinheit
DE102015100415A1 (de) 2015-01-13 2016-07-14 Krohne Messtechnik Gmbh Vorrichtung zur Bestimmung des Füllstands eines Mediums
DE102015100414A1 (de) 2015-01-13 2016-07-14 Krohne Messtechnik Gmbh Vorrichtung zur Bestimmung des Füllstands eines Mediums in einem Behälter
DE102015100417A1 (de) 2015-01-13 2016-07-14 Krohne Messtechnik Gmbh Verfahren zur Bestimmung des Füllstands eines Mediums in einem Behälter
USD898598S1 (en) * 2019-01-23 2020-10-13 Roth Technologies LLC Water proof water sensor
US11674838B2 (en) * 2019-04-04 2023-06-13 Poseidon Systems Llc Capacitive fringe field oil level sensor with integrated humidity and temperature sensing
JP6735882B2 (ja) * 2019-06-27 2020-08-05 株式会社鷺宮製作所 液体検知ユニット、圧縮機及び空気調和機
US20210325232A1 (en) * 2020-04-17 2021-10-21 Goodrich Corporation Capacitive point source level sensor for potable water systems

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US3109882A (en) * 1960-05-09 1963-11-05 Frederick L Maltby Insulating means for concentric conductor elements
US3262032A (en) * 1964-04-01 1966-07-19 Magnetic Instr Co Div Of Polym Capacitance type, depth measuring apparatus for conductive liquids
US3339411A (en) * 1965-06-23 1967-09-05 Bedford Controls Inc Electrode probe assembly
US3827300A (en) * 1970-07-31 1974-08-06 S Thaler Level sensing device with capacitive gaging transducer
US3843832A (en) * 1973-04-04 1974-10-22 Robertshaw Controls Co Capacitance probe
US3956760A (en) * 1975-03-12 1976-05-11 Liquidometer Corporation Liquid level gauge
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US4295370A (en) * 1979-03-12 1981-10-20 Emhart Industries, Inc. Capacitive scheme for measuring the level of a liquid
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DE3041914A1 (de) * 1980-11-06 1982-06-16 Vdo Adolf Schindling Ag, 6000 Frankfurt Einrichtung zur kapazitiven fuellstandsmessung
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US4745893A (en) * 1986-12-03 1988-05-24 Caterpillar Inc. Digital oil level sensor
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Also Published As

Publication number Publication date
DE69724772T2 (de) 2004-07-01
US5861811A (en) 1999-01-19
WO1997037198A1 (en) 1997-10-09
ES2206702T3 (es) 2004-05-16
EP0891535A1 (de) 1999-01-20
JP2000507704A (ja) 2000-06-20
EP0891535B1 (de) 2003-09-10
AU2434497A (en) 1997-10-22

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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